Two dice are thrown. Find the probability that a multiple of 3 occurs on one dice and a multiple of 2 occurs on the other. (a) 1/2 (b) 13/36 (c) 1/3 (d) 11/36 Sol: We have a total of 11 favorable cases viz. 2,3 2,6, 4,3 4,6 6,3 3,6 6,4 3,4 6,2 3,2 and 6,6 […]
Alloy A contains copper and zinc in the ratio of 4: 3 and alloy B contains copper and zinc in the ratio 5:2. A and B are taken in the ratio of 5: 7 and melted to form a new alloy. The percentage of zinc is the new alloy as closest to (a) 34.5% (b)
Find the mean of the first 10 even integers. (a) 11 (b) 9 (c) 12 (d) 10 Sol: First 10 odd integers: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 Mean = Sum of the first 10 odd integers/Number of such integers = (2 + 4 + 6 + 8 + 10 +
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If A had worked alone he would have taken 63 hours to do the task. What is B’s share, if A and B together on a task finishing it in 36 hours and they get paid Rs. 9275 for it? (a) Rs. 3951 (b) Rs. 3975 (c) Rs. 3999 (d) Rs. 4056 Sol:
If A had worked alone he would have taken 63 hours to do the task. What is B’s share Read More »
The single discount equal to three consecutive discounts of 10%, 12% and 5%? (a) 37% (b) 24.76% (c) 22.14% (d) 32% Sol: (1238/5000)x100= 24.76%
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A and B started a business by investing Rs. 36000 and Rs. 45000 respectively. After 4 months B withdrawals 4/9 of his investment. After 5 months from the withdrawal, B again invested 11/9 of its original investment. If the total earned profit at the end of the year is Rs. 117240, then who will get
Piyush has a box in which he kept red and blue marbles. The red marbles and blue marbles were in the ratio 5:4. After he lost 15 red marbles, the ratio becomes 10: 9. How many marbles does he have now? (a) 76 (b) 152 (c) 228 (d) 102 Sol: =228
Neeraj buys a bike on making a cashdown payment of Rs. 17,496 and promises to pay two more yearly installments of equivalent amount in next two years. If the rate of interest is 8% per annum compounded yearly, the cash value of the bike is (in Rs.): (a) Rs. 45,676 (b) Rs. 48,696 (c) Rs.
On a television of brand A, the discount is 25% and on television of brand B the discount is 40%. The price of B after discount is Rs. 10,650 greater than the price of A after discount. What is the marked price of A(in Rs.) marked price of B is Rs. 65,000? (a) Rs. 35,800
The ratio of the income of A and B last year was 4: 3 respectively. The ratios of their individual incomes of the last year and the present year are 3: 4 and 5: 6 respectively. If their total income for the present year is Rs. 12.06 lakhs, then the income of B last year
