Question
Today is Reena’s birthday. She has turned 34.
Reena is twice as old as Deepa was when Reena was as old as Deepa is now. How old is Deepa now?Solution
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
A spent 36% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 25% and 40% to his mother and brother, respec...
The number of terms needed to get Sn = 0 in the A.P of 63, 60, 57. . . . .
The ratio of selling price, cost price, and marked price of an article is 4:2:7, respectively. If there is a profit of Rs. 600 in the transaction, then ...
If the sum of n numbers in the GP 3, 6, 12, ... is 765 then n is?
Find the 5th term of the geometric progression whose first term is 128 and common multiple is 1/2.
What will be the mode of the following data?
13, 15, 31, 12, 27, 13, 27, 30, 27, 28 and 16
In triangle ABC, G is the centroid. If CF, AD and 'BE' are medians on sides 'AB', 'BC' and 'CA' respectively, and area of triangle BGF is 24 cm2
The number of marbles with ‘Ankit’ and ‘Bhavya’ together is 25 more than that with ‘Chetan’, while the number of marbles with ‘Bhavya’ a...
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