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Since the average increased by 1.5 kg, and there are 8 people,
Total increase in weight=1.5 × 8 = 12 kg
New person is 12 kg heavier than the person replaced:
Weight of new person = 65 + 12 = 77 kg
How many times are the hour and the minute hands of a clock at a right angle in a period of two days?
A clock gets fast by 15 minutes every day. If, on a certain day, the clock shows correct time at 12 in the noon, what time will the clock show at 4:00 ...
Find the cube of 373.
At 2'0 clock, the hands of a clock make an acute angle and a reflex angle. How much is the reflex angle (in degrees)?
