A man spent 45% of his income in May. If his savings is increased by 20% in June and becomes Rs. 13200, then find the income of man in May.
Savings of man in May = 13200 × (100/120) = Rs. 11000 So, income of man in May = 11000/0.55 = Rs. 20000
The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 is
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Find the largest number of the five digit which is exactly divisible by 48, 72 and 108.
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From a point on circular track 20 km long P, Q and R started running in the same direction at the same time with speed of 4 km per hour, 2 km per hour, ...
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