IMPORTANT FACTS Races: A contest of speed in running, riding, driving, sailing or rowing is called race. Race Course:The ground…

1. One side of a rectangular field is 15 m and one of its diagonals is 17 m. Find the…

1. Find compound interest on Rs. 7500 at 4% per annum for 2 years, compounded annually. Ans: 612 2. Find…

1. Find the simple interest on Rs. 68,000 at 16 2/3% per annum for 9 months. 2. Find the simple…

EXAMPLES 1. A man buys an article for rs.27.50 and sells it for rs.28.50. find his gain %. 2. If…

EXAMPLES 1. Express each of the following as a fraction :(i) 56% (ii) 4% (iii) 0.6% (iv) 0.008% 2. Express…

1. Rajeev’s age after 15 years will be 5 times his age 5 years back. What is the present age…

1. Find the average of all prime numbers between 30 and 50? 2. Find the average of first 40 natural…

1. Evaluate √6084 by factorization method. 2. Find the square root of 1471369 3. Evaluate √175.2976 4. Find the least…

Examples 1. If 2x+3y=34 and ((x + y)/y)=13/8,then find the value of 5y+7x. 2. If 2x+3y+z=55,x-y=4 and y – x…