The interest on a certain sum of money is ₹ 22 and the discount on the same sum for the same time and at the same rate is ₹ 20, find the sum.
₹ 220
₹ 200
₹ 210
₹ 212
A retailer purchased radio sets at the rate of ₹ 400 each from a wholesaler. He raised the price by 30% and then allowed a discount of 8% on each set. His profit will be
19%
78.4%
22%
19.6%
A reduction in the price of apples enables a person to purchase 3 apples for ₹ 1 instead of ₹ 1.25. What is the per cent of reduction in price (approximately)?
20
25
30
₹ 700 is divided among A, B, C in such a way that the ratio of the amounts of A and B is 2 : 3 and that of B and C is 4 : 5. Find the amounts (in ₹) each received, in the order A, B, C.
150, 250, 300
160, 240, 300
150, 250, 290
150, 240, 310
The ratio of monthly incomes of A, B is 6 : 5 and their monthly expenditure are in the ratio 4 : 3. If each of them saves ₹ 400 per month. Find the sum of their monthly incomes.
₹ 2300
₹ 2400
₹ 2200
₹ 2500
A and B have together three times what B and C have, while A, B, C together have ₹ 30 more than that of A. If B has 5 times that of C, then A has
₹ 60
₹ 65
₹ 75
₹ 45
A cricket player after playing 10 tests scored 100 runs in the 11th test. As a result, the average of his runs is increased by 5. The present age of runs is
45
40
50
55
C.
50
Let the average of runs till 10th test was x.
According to the question,
Sum of 10th innings = 10x
Sum of 11th innings = 11(x + 5)
Now,
11(x + 5) - 10x = 100
11x + 55 - 10x = 100
x = 100 - 55 = 45
∴ Present average of runs = (x + 5) = (45 + 5) = 50 runs.
A fruit seller buys some oranges at the rate of 4 for ₹ 10 and an equal number more at 5 for ₹ 10. He sells the whole lot at 9 for ₹ 20. What is his loss or gain per cent.
Loss per cent
Gain per cent
No loss or no profit
Loss per cent 2%
15 L of a mixture contains alcohol and water in the ratio 1 : 4. If 3 L of water is mixed in it, the percentage of alcohol in the new mixture will be
15
17
A man rides at the rate of 18 km/h but stops for 6 min to change horses at the end of every 7th km. The time that he will take to cover a distance of 90 km is
6 h
6 h 12 min
6 h 18 min
6 h 24 min