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Let monthly income of ‘P’ and ‘Q’ be Rs. ‘15x’ and Rs. ‘23x’, respectively Monthly savings of ‘Q’ = 44% × 15x = Rs. 6.6x Monthly savings of ‘P’ = {6.6/1.25} = Rs. 5.28x Monthly expenditure of ‘P’ = 15x – 5.28x = Rs. 9.72x Monthly expenditure of ‘Q’ = 23x – 6.6x = Rs. 16.4x Or, 16.4x = 4100 Or, x = 4100/16.4 Or, x = 400 Monthly expenditure of ‘P’ = 9.72 × 250 = Rs. 2430
If the standard deviation of a population is 5.5, what would be the population variance?
If p = q + 2, where q is the product of six consecutive positive integers, then which of the following is/are true? Â
a. p is a perfect cube
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
If the sum of n numbers in the GP 3, 6, 12, ... is 765 then n is?
The median 0f the given data will be 32, 25,33,27, 35, 29, and 30
If the angular diameter of the sun is 20, how far from the eye a coin of radius 3.3 cm be kept to hide the sun?
‘479385A267’ is ten-digit number which is divisible by 9, what is the value of ‘A’?
The sum to n terms of the series 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 …………………… is
The interest earned when a sum is invested at simple interest of 25% p.a., for 3 years, is Rs. 1875. What will be the total amount received after 2 year...
In an A.P a9 = 40, then find sum of first 17 terms of that A.P.