? No. of pages typed by the typist A in 4 hours = 100 x 4/10 = 40
? No. of remaining pages = 100 - 40 = 60
Let B and C worked for H hours
? (100 x H)/20 + (100 x H)/25 = 60
? 5H + 4H = 60
? H = 60/9 = 20/3 hours = 6 hours 40 min
? The time at which the report was typed 03.40 p.m.
4th observation i.e., 8 is the median.
47/10000 = .0047
.02 =(2/100) x 100% =2%
Let N / 11 = 233
Then, N = 233 x 11 = 2563
? Missing digit is 5.
121012 = 12 x 10084 + 4
? remainder = 4
We have the important relation, More work, More time (days)
? A piece of work can be done in 6 days.
? Three times of work of same type can be done in 6 x 3
= 18 days
? = 750.0003 ÷ 19.999
? ? ? 750 ÷ 20
? ? ? 375 ? 38
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