Chapter 3 – Pair of Linear Equations in Two Variables
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The sum of the digits of a two-digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is
22
Nov
The sum of the digits of a two-digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is the digits of the number get reversed. The number is The sum of the digits of a two-digit number is 9. If 27 is added to it November [...]
The pair of equations 5x−15y=8 and 3x−9y= 5/24 has
22
Nov
The pair of equations 5x−15y=8 and 3x−9y= 5/24 has The pair of equations 5x−15y=8 and 3x−9y= 5/24 has November 22, 2020 Category: Chapter 3 - Pair of Linear Equations in Two Variables , Maths , NCERT Class 10 ,
Vijay had some bananas, and he divided them into two lots A and B. He sold the first lot at the rate of ₹ 2 for 3 bananas and the second lot at the rate of ₹ 1 per banana, and got a total of ₹ 400. If he had sold the first lot at the rate of ₹1 per banana and the second lot at the rate of ₹ 4 for 5 bananas, his total collection would have been ₹ 460. Find the total number of bananas he had.
22
Nov
Vijay had some bananas, and he divided them into two lots A and B. He sold the first lot at the rate of ₹ 2 for 3 bananas and the second lot at the rate of ₹ 1 per banana, and got a total of ₹ 400. If he had sold the first lot at [...]
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and got a total of ₹ 400. If he had sold the first lot at the rate of ₹1 per banana and the second lot at the rate of ₹ 4 for 5 bananas ,
and he divided them into two lots A and B. He sold the first lot at the rate of ₹ 2 for 3 bananas and the second lot at the rate of ₹ 1 per banana ,
his total collection would have been ₹ 460. Find the total number of bananas he had. ,
Vijay had some bananas ,
Susan invested certain amount of money in two schemes A and B, which offer interest at the rate of 8% per annum and 9% per annum, respectively. She received ₹1860 as annual interest. However, had she interchanged the amount of investments in the two schemes, she would have received ₹20 more as annual interest. How much money did she invest in each scheme?
22
Nov
Susan invested certain amount of money in two schemes A and B, which offer interest at the rate of 8% per annum and 9% per annum, respectively. She received ₹1860 as annual interest. However, had she interchanged the amount of investments in the two schemes, she would have received ₹20 more as annual interest. How [...]
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had she interchanged the amount of investments in the two schemes ,
respectively. She received ₹1860 as annual interest. However ,
she would have received ₹20 more as annual interest. How much money did she invest in each scheme? ,
Susan invested certain amount of money in two schemes A and B ,
which offer interest at the rate of 8% per annum and 9% per annum ,
A shopkeeper sells a saree at 8% profit and a sweater at 10% discount, thereby, getting a sum ₹1008. If she had sold the saree at 10% profit and the sweater at 8% discount, she would have got ₹1028. Find the cost price of the saree and the list price (price before discount) of the sweater.
22
Nov
A shopkeeper sells a saree at 8% profit and a sweater at 10% discount, thereby, getting a sum ₹1008. If she had sold the saree at 10% profit and the sweater at 8% discount, she would have got ₹1028. Find the cost price of the saree and the list price (price before discount) of the [...]
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A shopkeeper sells a saree at 8% profit and a sweater at 10% discount ,
getting a sum ₹1008. If she had sold the saree at 10% profit and the sweater at 8% discount ,
she would have got ₹1028. Find the cost price of the saree and the list price (price before discount) of the sweater. ,
thereby ,
A railway half ticket costs half the full fare, but the reservation charges are the same on a half ticket as on a full ticket. One reserved first class ticket from the stations. A to B costs ₹2530. Also, one reserved first class ticket and one reserved first class half ticket from A to B costs ₹3810. Find the full first class fare from station A to B and also the reservation charges for a ticket.
22
Nov
A railway half ticket costs half the full fare, but the reservation charges are the same on a half ticket as on a full ticket. One reserved first class ticket from the stations. A to B costs ₹2530. Also, one reserved first class ticket and one reserved first class half ticket from A to B [...]
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A railway half ticket costs half the full fare ,
but the reservation charges are the same on a half ticket as on a full ticket. One reserved first class ticket from the stations. A to B costs ₹2530. Also ,
one reserved first class ticket and one reserved first class half ticket from A to B costs ₹3810. Find the full first class fare from station A to B and also the reservation charges for a ticket. ,
A two-digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the difference of the digits by 16 and then adding 3. Find the number.
22
Nov
A two-digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the difference of the digits by 16 and then adding 3. Find the number. A two-digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 [...]
A motorboat can travel 30 km upstream and 28 km downstream in 7 hours. It can travel 21 km upstream and return in 5 hours. Find the speed of the boat in still water and the speed of the stream.
22
Nov
A motorboat can travel 30 km upstream and 28 km downstream in 7 hours. It can travel 21 km upstream and return in 5 hours. Find the speed of the boat in still water and the speed of the stream. A motorboat can travel 30 km upstream and 28 km downstream in 7 hours. It [...]
A person, rowing at the rate of 5 km/h in still water, takes thrice as much time in going 40 km upstream as in going 40 km downstream. Find the speed of the stream.
22
Nov
A person, rowing at the rate of 5 km/h in still water, takes thrice as much time in going 40 km upstream as in going 40 km downstream. Find the speed of the stream. A person rowing at the rate of 5 km/h in still water takes thrice as much time in going 40 km [...]
Ankita travels 14 km to her home partly by rickshaw and partly by bus. She takes half an hour, if she travels 2 km by rickshaw, and the remaining distance by bus. On the other hand, if she travels 4 km by rickshaw and the remaining distance by bus, she takes 9 minutes longer. Find the speed of the rickshaw and of the bus.
22
Nov
Ankita travels 14 km to her home partly by rickshaw and partly by bus. She takes half an hour, if she travels 2 km by rickshaw, and the remaining distance by bus. On the other hand, if she travels 4 km by rickshaw and the remaining distance by bus, she takes 9 minutes longer. Find [...]
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and the remaining distance by bus. On the other hand ,
Ankita travels 14 km to her home partly by rickshaw and partly by bus. She takes half an hour ,
if she travels 2 km by rickshaw ,
if she travels 4 km by rickshaw and the remaining distance by bus ,
she takes 9 minutes longer. Find the speed of the rickshaw and of the bus. ,