A and B can complete a work in 6 and 5 days respectively. with the help of C they complete the work in 2 days. In how many days C alone complete the work?
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Solution
A B A + B + C
6 5 2
∴ time Required to C complete the work = = days
The length and breadth of a rectangle are 20 m and 8 m respectively. If length is increased by 20% and the breadth by 15% the percentage increase in its area is-
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Solution
% increase in area = 20 + 15 +
A sum of money amounts to Rs. 6690 after 3 years and to Rs. 10035 after 6 years on compound interest. Find the sum.:
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Solution
Let the amount is Rs. P and Rate of interest is R.
∴ 6690 = P × .......(i)
10035 = P × ......(ii)
Dividing eq. (ii) by eq (i)
⇒ P = Rs. 4460
In the Given number series only one number is wrong. Find out the wrong number.
4 12 38 108 324 972
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Solution
In the Given number series only one number is wrong. Find out the wrong number.
1 8 18 64 125 216 34
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Solution
In the Given number series only one number is wrong. Find out the wrong number.
18 26 38 48 74 98
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Solution
In the Given number series only one number is wrong. Find out the wrong number.
15 18 21 25 29 32 33
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Solution
In the Given number series only one number is wrong. Find out the wrong number.
3, 15, 60, 180, 366, 360
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Solution