saina was given some money by her father on her birthday ,saina spent all of it in five shops .In each shop one rupee more than half of what she had when she came in.How much did she get from her father
In a mixture of 120 litres ,the ratio of acid and water is 2:1. If the ratio of acid and water is to be 2:3 , then the amount of water (in lit) to be added to the mixture is
Income of Avin is 5/8 of the income of Bina .Avin's expenses are one-half of those of Bina ,AND Avin saves 40% of his income .What percentage of her income does Bina save?
a man travels from his house ti his office at 5 km/hr and reaches his office 20 min late .if his speed had been 7.5 km/hr ,he would have reached his office 12 min early .find the distance from his house to his office.
A is driving along a highway at a speed of 90 km/hr .He is passed by B who is driving on the same highway in the same direction at a constant speed .Twelve seconds after B passes A ,their cars are 100 m apart.The speed of B's car ,in km/hr,is
Points A and B are 90 km apart from each other on a highway. A car starts from A and another from B at the same time. If they go in the same direction they meet in 9 hours and if they go in opposite directions they meet in 9/7 hours. Find their sppeds.
A LOAN of Rs. 127500 is to be paid back in two equal half-yearly instalments.If interest is compounded half-yearly at 8% per annum,then each instalments is of
In a school ,3/7 of the students are girls and 1/4 of the boys are below six years of age .5/6 of the girls are also below six years of age if the number of students of age six or more years is 300, the total number of student in the school is .
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?
frank
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