Question
How many pairs of letters are there in the word
‘DEVELOPMENT’ which maintain their alphabetical positioning (both forward and backward directions)?Solution
DE, OP, OT, PT are four such pair of letters are there in the word ‘DEVELOPMENT’ which have as many letters between them as in the English alphabetical series.
Find the third proportional to 13 and 39?
Monthly savings of ‘Q’ is 25% more than that of ‘P’ and is 48% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 3450 a...
If ‘A’, ‘B’ and ‘C’ are in proportion in the given order while ‘A’ = 27 and ‘B’ = 63, then find the value of ‘C’.
...The ratio of number of boys and girls in a factory of 660 workers is 7:5. How many more girls should be joined to make the ratio 1:1?
The ratio of the incomes of Vineet and Vidya is 15:8 respectively. Vineet saves 40% of his income while Vidya saves 25% of his income. The sum of their ...
There are 70 rupees in a box which contains coins of 1 rupee, 50 paise, and 25 paise. If the number of 50 paise coins is 2 times the number of 25 paise ...
An amount is distributed among X, Y, Z, and W in the ratio 8:5:3:7 respectively. If the amount received by Y is Rs. 1,250 , then find the amount receive...
Rs. 23942 are divided between A and B in the ratio 3:7. What is the difference between thrice the share of A and twice the share of B?
Rs.10800 was divided among A, B and C in the ratio 2:3:4. B kept Rs.1200 for himself, gave Rs.800 to his mother and divided the remaining money among hi...
Find the third proportion of 25 and 40.
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