Question
Which of the following numbers is divisible by
22?Solution
A number is divisible by 22 if it is divisible by both 2 and 11. Divisibility by 2: A number is divisible by 2 if its last digit is even. Divisibility by 11: A number is divisible by 11 if the alternating sum and difference of its digits is divisible by 11. According to the option-1 714538: Divisible by 2 (last digit 8 is even). Divisible by 11 (alternating sum: 0). Divisible by 22.
If the sum of three numbers is zero, then which of the options below will always be equal to the value of the sum of the cubes of those numbers?
In Δ ABC, ∠ B= 68° and ∠ C 32°. Sides AB and AC are produced to points D and E, respectively. The bisectors of ∠ DBC and ∠...
Find the value of
(1 - Â `1/(p+1)` ) + (1 - `2/(p+1)` Â ) + (1 - `3/(p+1)` Â ) + ........................... + (1 - Â `p/(p+1)` )
If
= 2 then find
If 3x + (1/3x) = 9 then find 27x³ + (1/27x³ ) = ?
if a2 + b2 + c2Â =Â 2(3a -5b -6c)-70 , then a-b-c = ?
If 2x + y = 10 and 3x - 2y = 5, find the value of x + y.
- If a 2  + b 2  + c 2  = 240 and ab – bc – ca = 64, then find the value of (a + b – c) 2 .
If Â
 = 4 then