For the following questions answer them individually
The ratio between the boys and girls in a class is 6:5 respectively .If 8 more boys join the class and two girls leave the class then the respective ratio becomes 11:7.What is the number of boys in the class now ?
Mohan purchased an article and sold it for Rs 2817.50 and earned 15 per cent profit on the cost price. What was the cost price of the article ?
The difference between the averages of three consecutive even numbers and the average of the next two consecutive even numbers is 5. What is the first even number ?
A 160 metre long train running at a speed of 90 kmph crosses a platform in 18 seconds.What is the length of the platform in metres?
75% of a number is equal to four-fifth of another number.What is the ratio between the first number and the second number respectively ?
What will be the difference between the compound interest and simple interest at the rate of 5 p.c.p.a on an amount of Rs 4,000 at the end of two years ?
The difference between the digits of a two digit number is 4 and the digit in the unit’s place is one-third of the digit in the tenth’s place.What is the two-digit number ?
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