RRB Group D Number System — practice questions
10 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice RRB Group D Number System in the app →If $a + b + c = 0$, what is the value of $a^3 + b^3 + c^3$?Factorise $a^3 - b^3$.What is the square of 349?What is the three-digit number which is 2 more than a perfect square and 2 less than a perfect cube?Which of the following numbers is NOT a perfect cube?What is the HCF of 16, 72 and 28?The HCF of 156, 312 and 195 is:If the number x3339 is divisible by 11, what is the digit x?The least common multiple (LCM) of 14, 42 and 77 is:If the number x4738 is divisible by 9, what is the value of x?