The cost price of an article is 80% of its marked price for sale. How much per cent does the tradesman gain after allowing a discount of 12%?
20
12
10
10
A merchant has announced 25% rebate on prices of ready-made garments at the time of sale. If a purchaser needs to have a rebate of Rs. 400. then how many shirts, each costing Rs. 320, should he purchase?
10
7
6
6
A merchant purchases a wrist watch for Rs. 450 and fixes its list price in such a way that after allowing a discount of 10%, he earns a profit of 20%. Then the list price (in rupees) of the wrist watch is
500
600
750
750
A reduction of 10% in the price of tea enables of a dealer to purchase 25 kg more tea for Rs. 22500. What is the reduced price per kg of tea?
Rs. 70
Rs. 80
Rs. 90
Rs. 90
Ram donated 4% of his income to a charity and deposited 10% of the rest in a Bank. If now he has Rs. 8640 left with him, then his income is
Rs. 12500
Rs. 12,000
Rs. 10,500
Rs. 10,500
D.
Rs. 10,500
Let's Ram income = Rs. 100
Donation to charity = Rs. 4
Amount deposited in bank
Savings = 100 - 13.6 = Rs. 86.4
If the length of a rectangle is increased by 10% and its breadth is decreased by 10%, then its area
decrease by 1%
increases by 1%
decreases by 2%
decreases by 2%
Three spherical balls of radii 1 cm, 2 cm and 3 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is
6 cm
5 cm
3 cm
3 cm
If A : B = 2 : 3, B : C = 4 : 5 and C : D = 5 : 9, then A : D is equal to
11 : 17
8 : 27
5 : 9
5 : 9
If the length of a rectangle is increased in the ratio 6 : 7 and its breadth is diminished in the ratio 5 : 4 then its area will be diminished in the ratio
17 : 16
15 : 14
9 : 8
9 : 8
7 years ago, the ages (in years) of A and B were in the ratio 4 : 5; and 7 years hence they will be in the ratio 5 : 6. The present age of B is
56 years
63 years
70 years
70 years