Exercise 1
1. If P/Q = 7 ; Then find the value of (P^2 + Q^2) / (P^2 - Q^2)
2. IF a/b = 3 /5 , Then find the value of (9a + 4 b) / ( 9a - 4 b)
3. Find the value of [(0.5)^4 - (0.4)^4] / [(0.5)^2 + (0.4)^2]
4. The cost of 6 Hard disk is equal to 9 printers, the cost of 27 printers is equal to 30 scanners and the cost of 300 scanners is equal to 9 computers . If the cost of 3 computers is Rs. 24000 then find the cost of a hard disc .
5.There are 2 baskets A & B containing balls . If 10 balls are transferred from A to B, then the number of balls in both the baskets become equal. If 20 balls had been transferred from B to A , then the number of balls in basket A would have been twice that of in B . Find the original number of balls in basket A .
6.A,B&C start a business in which A,s Investment is Rs. 20,000. If at the end of the year , in total profit of Rs. 2000 , A's share is Rs. 1000 and that of B's is Rs.600, Find the investment of C .
7. The cost of Nano car increases by 10% and that of Maruti car by 18% . The cost of an Nano car is thrice of Maruti car. Find the increase (in percentage) in the cost of 10 Nano & 5 Maruti Car .
1. If P/Q = 7 ; Then find the value of (P^2 + Q^2) / (P^2 - Q^2)
2. IF a/b = 3 /5 , Then find the value of (9a + 4 b) / ( 9a - 4 b)
3. Find the value of [(0.5)^4 - (0.4)^4] / [(0.5)^2 + (0.4)^2]
4. The cost of 6 Hard disk is equal to 9 printers, the cost of 27 printers is equal to 30 scanners and the cost of 300 scanners is equal to 9 computers . If the cost of 3 computers is Rs. 24000 then find the cost of a hard disc .
5.There are 2 baskets A & B containing balls . If 10 balls are transferred from A to B, then the number of balls in both the baskets become equal. If 20 balls had been transferred from B to A , then the number of balls in basket A would have been twice that of in B . Find the original number of balls in basket A .
6.A,B&C start a business in which A,s Investment is Rs. 20,000. If at the end of the year , in total profit of Rs. 2000 , A's share is Rs. 1000 and that of B's is Rs.600, Find the investment of C .
7. The cost of Nano car increases by 10% and that of Maruti car by 18% . The cost of an Nano car is thrice of Maruti car. Find the increase (in percentage) in the cost of 10 Nano & 5 Maruti Car .
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