Question
Three of the following four numbers are alike in a
certain way and one is different. Pick the number that is different from the rest .Solution
The pattern is A - 78 + 13 = 91 B - 58 + 13 = 71 C - 38 + 13 = 51 D - 28 + 13 = 41 but 31 is given so this is different.
If 2x + y = 15 and xy = 18, then the value of (4x² - y²)
- If (x – 12) 3  + (x – 5) 3  + (x – 7) 3  = 3(x – 12)(x – 5)(x – 7) then find the value of (x 2 �...
If 125x3Â - 64y3Â = (Ax + By) (Dy2Â - Cx2Â + 20xy) , then the value of A + C - 2B + 3D is:
Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1st Part at 4% per annum for 3 years, Simple Interest on 2nd
[a/(2a²  + 5a + 2)] = 1/6 , then find the value of (a+1)/a ?
- Find the value of the expression {(4096) n /4  × 8 3n + 1 }/{(512) n  × 8 n – 1 }.
Find the number in place of ?
6, 14, 26, ?, 106, 214
If 5x - 13xy + 6y = 0, find x : y.
- If (510 – 486 + 240) ÷ 8 + √2500 = x, then {(x/2) + 18} = ?
(288 ÷ 8)² × (144 ÷ 24)³ = 24 × ? × (51840 ÷ 20)