Question
2/5 of a number plus 3/10 of the same number is 70. Find
the number.Solution
(2/5)N + (3/10)N = 70 LCM of 5 and 10 is 10 2/5 = 4/10 So, (4/10)N + (3/10)N = (7/10)N (7/10)N = 70 N = 70 × (10/7) = 10 × 10 = 100 Answer: 100
Evaluate 3.2 × 2.5 + 1.5 × 1.2 and express the answer as a fraction.
A man distributed some candies to his three sons A, B and C. A, being the eldest got two times the number of candies that C got while A and B together...
The value of
If numerator of a fraction is decreased by 30% and the denominator of the same fraction is increased by 40%, then what fraction of the old is the new fr...
Simplify: 3/4 + 5/6
Evaluate: 180 ÷ (6 × 5) + 7 × 3 − 8
Which fraction bears the same ratio to 1/27 as 3/11 does to 4/9?
If the numerator of a fraction is increased by 25% and the denominator is decreased by 10%, the value of the new fraction 25/24, Find the original faction.
Relevant for Exams:
