Question
Find the wrong number in the given number series.
/>76, 81, 96, 123, 156, 201Solution
ATQ,
76 + (5 X 1) = 81
81 + (5 X 3) = 96
96 + (5 X 5) = 121
121 + (5 X 7) = 156
156 + (5 X 9) = 201
Therefore, 121 should come in place of 123
- If (x - y) = 5, then find the value of (x³ - y³ - 15xy).
If x = 15
find x 5 - 16 x 4 + 16 x 3 - 16 x 2 + 16 x  - 16 = ?
If  a2+2 = 2a
then find a4Â - a3Â + 2a2Â -2a+ 9 = ?
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 – 3(a – 4 ) (b – 2 ) (c &n...
If (5x - 2y) = 170 and 4x:3y = 32:9, then find the value of (3x² + y²).
If 9 : 12 :: 12: x, and 28: 42:: 42: y, then the value of 2x + y is:Â
Determine the remainder when the polynomial 4x 3 Â - 5x 2 Â + 2x + 1 is divided by (4x - 3).
if √1+x/121 = 13/11 then find the value of x.
A shopkeeper marked his article 25% above its cost price and offered a discount of 30%. If cost price of the article is Rs. 560, then find profit or los...