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• The diameter of the driving wheel of a bus in 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 kmph?

last reply by Anil  •  2 years ago  •  asked by Kirti reddy

• Suresh borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a. for the next five years and 13% p.a. for the period beyond eight years. If the total interest paid by him at the end of 11 years is Rs.8160, how much money did he borrow?

last reply by suchandra rout  •  6 years ago  •  asked by Gautham Swami

• There are 10 cig packs each containing an unknown no of cigs( each = Pack has between 50 and 100). One pack has all bad cigs . Each good cig = ( if u can agree that any cig is good) weighs 1gm. Each bad cig weighs = 1.1 gm or .99 gm but all bad cigs weigh same. Using a spring chemical = Balance ( which gives u the exact weight) .find out which pack is bad ,Using the balance only once.

last reply by Vaibhav Patel  •  4 years ago  •  asked by Pritha sharma

• A circular metal plate of even thickness has 12 holes of radius 1 cm drilled into it. As a result the plate lost 1/6th its original weight. The radius of the circular plate is (a) 16sqrt2 (b) 8sqrt2 (c) 32sqrt2 (d) sqrt72'

last reply by Rahul Mittal  •  7 years ago  •  asked by Nandani