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Let sum = Rs. 250 C.I. for 3 year at 20% p.a. = 250 × (12/10)3 – 250 = 182 SI for 3 year at 20% p.a. = (250 × 3 × 20)/100 = 150 Difference = 182 – 150 = 32 => 32 ------ 176 ⇒ Sum = (176/32) × 250 = Rs.1375 Required Interest = (1375 × 2 × 10)/100 = Rs.275
A and B can do a work in 21 days, A is (7/4) times as efficient as B. In how many days, A alone can complete the (100/3)% of the work?
3 men dig a hole in 10 days. How many days would it take for 5 men to dig the same hole ?
Sanjay and Amit can do a piece of work in 8 days. Amit alone can do it in 12 days. In how many days will Sanjay do it alone?
How will you write 3.78 hours in hours, minutes, and seconds?