A and B together can do a piece of work in 12 days which B and C together can do in 16 days. After A has been working at it for 5 days and B for 7 days, C finishes it in 13 days. In how many days C alone will do the work ? 24 days 16 days 48 days 36 days Sol:
Sunil invested Rs. x in scheme A at a rate of 15% per annum for 2 years at Simple Interest and invested Rs. (x + 500) in scheme B at the rate of 12% per annum for 2years at simple Interest. If the total interest received by him at the end of 2 years is
The ratio between the speeds of two trains is 4 : 5. If the second train runs 800 km in 8 hours, then what is the speed of the first train? A. 80 Km/h B. 90 km/h C. 70 km/h D. 40 km/h Sol; Formula Used: speed = distance/time Let the speed of two trains
A shopkeeper sold an article at a loss of 20%. If the selling price had been increased by ₹100, there would have been a gain of 5%. What was the cost price of the article? A. ₹400 B. ₹500 C. ₹700 D. ₹600 Ans:
A vessel contains 208 liters’ mixture of milk and water mixed in the ratio 11 ∶ 5. ‘8x’ liters of mixture are taken out of the vessel and replaced with ‘3x – 4’ liters of water so that the ratio of milk to water in the vessel becomes 4 : 3 respectively. Find the difference
7, 6, 11, 32, 135, 634 a. 32 b. 11 c. 135 d. 634 e. 6 Sol: 7 * 1 – 1 = 6 6 * 2 – 1 = 11 11 * 3 – 1 = 32 32 * 4 – 1 = 127 127 * 5 – 1 = 634
(479.89 ÷ 6.32 ÷ 1.99 ) * 5.27 = ? a) 200 b) 300 c) 700 d) 500 e) 100 Sol: (479.89 ÷ 6.32 ÷ 1.99 ) * 5.27 = ? (480 ÷ 6 ÷ 2) * 5 = ? 80 ÷ 2 * 5 = ? ? = 200
A vessel contains 90 litres of mixture of Apple juice and Orange juice in the ratio of 5:4 and 6x litres of mixture is removed from the vessel and 4x litres of Orange juice is added to the vessel and the ratio of Apple juice and Orange juice becomes 10:11. Find the value of ‘x’.
Amelia started a business with Olivia, with their investment Rs. 8000 and Rs. 4000 respectively. If the ratio of their profit share at the end of the year is 7:6, then find that after how many months, Amelia left the business? a. 6 months b. 9 months c. 11 months d. 5 months e. 7
133, 302, 181, 254, 213, 238 a. 302 b. 254 c. 181 d. 238 e. 213 sol: 133 + 132 = 302 302 – 112 = 181 181 + 92 = 262 262 – 72 = 213 213 + 52 = 238
