Question
Three numbers a, b and c are such that a = 120, (a + b)
= 420 and (c – b) = 60. Find their average.Solution
ATQ, Given, a = 120, (a + b) = 420 and (c – b) = 60 Therefore, b = 420 – 120 = 300 And, c = 300 + 60 = 360 Required average = (120 + 300 + 360)/3 = 260
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
Determine the value of ‘x’ if x% of 500 plus {1250 ÷ x of 10} × 5 equals 130
1885 ÷ 64.98 + 7.29 + ? = 69.09
(2500 ÷ √625) × √(42.25) = ? ÷ 4
√4096 + √3249 = (?)2
Find the Value of √(-√3+√(3+8√(7+4√3)))?
What value should come in place of the question mark (?) in the following question?
20% of 1500 – 75% of 200 = 125% of ?
What value should come in the place of (?) in the following questions?
40% of 480 + √? = 25% of 300 + 126
45% of 1020 + ?% of 960 = 747
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