Question
A spent 25% of his monthly income on study and 55% of
the remaining on rent. If amount spent on rent is Rs. 825, then find the amount spent on studySolution
Let, monthly income of A is Rs. x So, 0.75 × 0.55 × x = 825 So, x = 2000 Amount spent on study = 0.25 × 2000 = Rs. 500
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The value of
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A student was required to calculate 9/20 of a number, but by mistake he calculated 11/20 of it. His answer exceeded the correct one by 65. Find the number.
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...Find the average of the cubes of the first 7 natural numbers.
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