The value of (x + y + z)3 – (y + z – x)3 – (z + x – y)3 – (x + y – z)3 is:
(A) 12 xyz
(B) 24 xyz
(C) 36 xyz
(D) 0
If a3 – b3 – c3 – 3abc = 0, then
(A) a = b = c
(B) a + b + c = 0
(C) a + c = b
(D) a = b + c
If the sum of {a\over b}and its reciprocal is 1 and a ≠ 0, b ≠ 0, then the value of a3 + b3 is
(A) 2
(B) -1
(C) 0
(D) 1
The sum of the squares of two positive integers is 100 and the difference of their squares is 28. The sum of the numbers is:
(A) 14
(B) 15
(C) 12
(D) 13
What is the value of
(A)
(B)
(C)
(D)
Simplify the following expression.
25-(4÷2)+11.5+9.5
(A) 46
(B) 47
(C) 44
(D) 45
If
(A)
(B)
(C)
(D)
If
(A)
(B)
(C)
(D)
After interchanging the given two signs, what will be the value of the following expression?
× And ÷
20 + 5 ÷ 6 × 2 – 5
(A) 30
(B) 35
(C) 25
(D) 40
What is the value of y in the following equation?
(1÷23) of [2{3 + 4(35 + 7)}] = y
(A) 2
(B) 5
(C) 21
(D) 23
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