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Solution
⇒
[(– 2)(–2)](–2) = ?
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Solution
⇒ [(–2)(–2) × (–2)] = (–2)4 = 24 = 16
(0.0016)0.16 × (0.0016)0.09 = ?
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Solution
(0.0016)0.16 + 0.09 = (0.0016)0.25 =
(16)0.16 × (16)0.04 × (2)0.2 = ?
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Solution
(16)0.16 × (16)0.04 × (2)0.2
⇒ (2)4 × 0.16 × (2)4 × 0.04 × (2)0.2
⇒ (2)0.64 + 0.16 + 0.2 = (2)1.00 = 2
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Solution
45 + 46 + 47 + …. + 114 + 115 = ?
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Solution
a = 45 d = 1
nth term = a + (n – 1) d
115 = 45 + (n – 1) × 1
n = 71
Sum =
=
=
= 71 × 80 = 5680
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Solution
(0.98)3 + (0.02)3 + 3 × 0.98 × 0.02 – 1 = ?
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Solution
(0.98)3 + (0.02)3 + 3 (0.98 + 0.2) (0.98 × 0.02) – 1
⇒ (0.98 + 0.02)3 – 1 [(a + b)3 = a3 + b3 + 3ab(a + b)]
⇒ (1)3 – 1
⇒ 0
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Solution
a3 + b3 = (a + b) (a2 + b2 – ab)
⇒ a = 0.87, b = 0.13
So,
So ⇒ 0.87 + 0.13 = 1.00
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Solution
Quantitative Aptitude
Attempted
Correct
UnAttempted
Wrong