x3 + y3 = (x + y)(x2 – xy + y2) ⇒ 9 = 3*{(x + y)2−3xy}=3*(9−3xy) = 27−9xy Or xy=2 x2 + y2 = (x + y)2 – 2xy = 9 – 2*2 = 5 x4 + y4 = (x2 + y2)2 – 2x2y2 ⇒ x4 + y4 = 25 – 2*(2)2 = 25 – 8 = 17
Find the wrong number in the given series.
5, 3, 6, 17.25, 64.75
Identify the letter-cluster that does not belong to the following series.
RBK, TYM, VVO, XSP, ZPS, BMU
Arrange the following words in a logical and meaningful order.
1. Monkey
2. Elephant
3. Rat
4. Fly
5. Lion
5, 15, 30, 135, 405, 1215, 3645
Find the wrong number in the series given below.
6, 19, 59, 182, 544, 1637
In this question, one term in the number series is wrong. Find out the wrong term.
130, 135, 143, 154, 168, 183, 205
Find the wrong number in the given series.
17, 17, 51, 255, 1789, 16065
60 32 4 8 -4
In this question, one term in the number series is wrong. Find out the wrong term.
110, 115, 123, 134, 148, 163, 185
Find the wrong number in the series given below.
3, 10, 89, 99, 301, 908
