Let the marked weight = 1 kg = 1000g
Real weight = 70% of 1000 = 700g
Let CP of 1g = ? 1
? CP of 700g = ? 700
CP of 1000g = ? 1000
SP = 110% of 1000
= 110/100 x 1000 = ? 1100
Gain = 1100 - 700 = ? 400
? Gain % = (400/700) x 100%
= 571/7%
.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
Subtract 20, 25, 30, 35, 40, 45 from successive numbers. So 0 is wrong.
NA
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