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486 ÷ {3/4×16/15 -2/3} 486 ÷ {48/60 -2/3} 486 ÷ {4/5-2/3} 486×15/2 =243×15 =3645
Determine the value of a − b given that a + 3b = 18a and 3a + b = 30 .
A is 75% more than B. C is 60 less than A. Average of A, B and C is 340. The ratio of B and C is 2:x. Find the value of x.
Piyush bought 18 notebooks for Rs.1220 from shop A and 14 notebooks for Rs.860 from shop B. What is the average price he paid per book?
A bowler gives 15.2 runs per wicket. He gives 32 runs and takes 4 wickets in the last match after which his average becomes 14.4 runs per wicket. How ma...
The average age of three children is 25 years. If their ages are in the ratio 2:6:7. Find the age of the youngest child.
In an examination the average marks of Rohit is 60. If he got 15 more marks in science and 21 more marks in maths then his average would have been 66. F...
The average cost of three chairs is Rs.10000. The average cost decrease by 10% when one more chair is included. What is the cost price of the 4th
Average of four numbers is 28. Sum of smallest and largest number is 57. If difference between other two numbers is 1, then find the square of second sm...
The combined average weight of 8 copies and 5 books is 150 grams. If the average weight of the copies is 180 grams, find the average weight of the books.
Average age of company A is 24 years and average age of both companies A and B is 12 years. If the ratio of number of employees in company A and B is 3:...
