Aptitude · all questions

Number System
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Q621

Open question

Let x = 224 and y = 322. If the highest common factor of 23x and a × y is divisible by x and y, then what can be the possible value of a?

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Q622

Open question

The number 334 × 545 × 7p is divisible by 3340 then what is the minimum value of P?

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Q623

Open question

The smallest five digit number which is divisible by 12, 18 and 21 is:

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Q624

Open question

Let, p, q, r and s be positive natural numbers having three exact factors including 1 and the number itself. If q > p and both are two-digit numbers, and r > s and both are one-digit numbers, then the value of the expression

\frac{p - q - 1}{r - s}

is:

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Q625

Open question

What decimal of a week is an hour?

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Q626

Open question

The sum of three consecutive natural numbers each divisible by 5, is 225. The largest among them is?

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Q627

Open question

A six-digit number is divisible by 198. If the digits are rearranged, even then the number will be divisible by:

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Q628

Open question

If A =

\frac{0.0004 \times \root 3 \of 0.000008}{\root 4 \of 16000 \times \root 3 \of 125000 \times \root 4 \of 810}

and B =

\frac{\root 3 \of 0.729 \times \root 4 \of 0.0016}{0.16},

what is A × B?

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Q629

Open question

A boy added all natural numbers from 1 to 10, however he added one number twice due to which the sum becomes 58. What is the number which he added twice?

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Q630

Open question

What is the least value of x such that 517x324 is divisible by 12?

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Q631

Open question

The number of factors of 196 which are divisible by 4 is:

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Q632

Open question

Let x be the least number which when divided by 15,18, 20 and 27, the remainder in each case is 10 and x is a multiple of 31. What least number should be added to x to make it a perfect square?

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Q633

Open question

If the sum of two positive numbers is 65 and the square root of their product is 26, then the sum of their reciprocals is: