For the following questions answer them individually
The present ages of two persons are 36 and 50 years respectively if after n years the ratio of their ages will be 3:4 then the value of n is
Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1m 12cm. The average height of all of them is
A dishonest greer sells rice at a profit of 10% and also uses weight which are 20% less than the marked weight. The total gain earned by him will be
The cost price of a radio is 600. 5% of the cost price is charged toward transportation. After adding that, if the net profit to be made is 15%, then the selling price of the radio must be
A certain amount of money is divided amoung x,y and z. If x receives 25% more than y and y receives 25% less than z, then x:y:z is equal to
Walking at speed of 5 km/hr,a man reaches his office 6 minutes late. Walking at 6 km/hr, he reaches there 2 minutes early. The distance of his office is:
By selling a fan for 600, a man loses 10%. To make a gain of 20%, the selling price of the fan should be
Two persons contested an election of Parliament. The winning candidate secured 57% of the total votes polled and won by a majority of 42,000 votes. The number of total votes polled is
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