alleryStart learning →A number is divisible by 5 only if its last digit is which pair?
- 0 or 2
- 0 or 5
- 2 or 5
- 5 or 7
Show answer and solution
Correct answer: B. 0 or 5
Multiples of 5 always end in 0 or 5, so the last digit alone settles the test.
SSC CGL Arithmetical Reasoning — practice questions
Explore 56 free Arithmetical Reasoning questions in SSC CGL Reasoning. Open each question or exercise to read its content, reference answers and available explanation.
Practise Arithmetical Reasoning with Quill →Arithmetical Reasoning questions and exercises with answers
Showing questions 1–30 of 56.
A number is divisible by 5 only if its last digit is which pair?Read the answer and worked solution →Which pair of tests together proves a number is divisible by 6?Read the answer and worked solution →Pick the number that 6 divides exactly.Read the answer and worked solution →A number is divisible by 3 when which quantity is divisible by 3?Read the answer and worked solution →Choose the multiple of 9 from the list below.Read the answer and worked solution →Which digit must replace * so that 52* is divisible by 9?Read the answer and worked solution →The test for 4 looks at which part of a number?Read the answer and worked solution →Pick the multiple of 4 from the following list.Read the answer and worked solution →Choose the digit that makes 4,5k2 a multiple of 4.Read the answer and worked solution →Which test is used to check divisibility by 11?Read the answer and worked solution →Which number passes the alternating-sum test for 11?Read the answer and worked solution →The alternating digit sum of 907,071 is 22. What follows about 907,071?Read the answer and worked solution →A number 10x + y is divisible by 7 exactly when which expression is?Read the answer and worked solution →Applying x - 2y to the number 301 shows it is a multiple of 7. What value results?Read the answer and worked solution →Which option is a multiple of 7, using the subtract-twice-the-last-digit trick?Read the answer and worked solution →To test divisibility by 36, which pair of divisors should be checked?Read the answer and worked solution →A number divisible by both 3 and 12 need not be divisible by 36. Which number shows this?Read the answer and worked solution →Divisibility by 8 depends on how many final digits of the number?Read the answer and worked solution →Using only the last three digits, which number is a multiple of 8?Read the answer and worked solution →To prove divisibility by 24, which two checks suffice?Read the answer and worked solution →To divide 340 by 5 with the shortcut, which number is doubled?Read the answer and worked solution →For 135, double the remaining digits and add one. What quotient of 135 divided by 5 results?Read the answer and worked solution →A number divisible by both 2 and 5 must end in which digit?Read the answer and worked solution →Choose the number that 3 divides but 9 does not.Read the answer and worked solution →A number divisible by 9 is always divisible by which of these?Read the answer and worked solution →In base twelve, the digit sum gives the remainder on division by which number?Read the answer and worked solution →Is zero an even or an odd integer?Read the answer and worked solution →Parity (even or odd) is defined only for which kind of numbers?Read the answer and worked solution →Adding two odd numbers always gives a number of what type?Read the answer and worked solution →Multiplying an even and an odd number gives what type of result?Read the answer and worked solution →
Worked practice questions
Which pair of tests together proves a number is divisible by 6?
- By 2 and by 4
- By 3 and by 4
- By 2 and by 3
- By 3 and by 9
Show answer and solution
Correct answer: C. By 2 and by 3
Since 6 is 2 times 3 and these are coprime, a multiple of both 2 and 3 is a multiple of 6.
Pick the number that 6 divides exactly.
- 4,325
- 3,214
- 5,102
- 4,326
Show answer and solution
Correct answer: D. 4,326
4,326 is even and its digit sum 4+3+2+6 = 15 is a multiple of 3, so it passes both tests for 6.
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