## Minimum digits to remove to make a number Perfect Square

Given a integer n, we need to find how many digits remove from the number to make it a perfect square. Examples: Input : 8314… Read More »

Given a integer n, we need to find how many digits remove from the number to make it a perfect square. Examples: Input : 8314… Read More »

Given N, check if the number is Fibbinary Number or not. Fibbinary numbers are integers whose binary representation contains no consecutive ones. Examples : Input… Read More »

You are given a number n, the task is to find nth octagonal number. Also, find the Octagonal series till n. An octagonal number is… Read More »

Which of the following is the largest of all ? (i) 7/8 (ii) 15/16 (iii) 23/24 (iv) 31/32 (A) (i) (B) (ii) (C) (iii) (D)… Read More »

Two numbers are in the ratio of 5:7. If their LCM is 105, what is the difference between their squares ? (A) 216 (B) 210… Read More »

HCF of two numbers is 11 and their LCM is 385. If the numbers do not differ by more than 50, what is the sum… Read More »

What is the largest number which divides 26, 47, 84 to leave remainders 2, 3, 0 respectively ? (A) 4 (B) 6 (C) 8 (D)… Read More »

What is the smallest number which when divided by 6, 9, 11, 16 and 22 leaves remainder 3 in each case ? (A) 3267 (B)… Read More »

A number leaves remainders 1, 4 and 7 on being divided successively by 3, 5 and 8 respectively. What is the product of the remainders… Read More »

On dividing 201098 by a certain number, the quotient is 67 and the remainder is 31. Find the divisor. (A) 3011 (B) 3001 (C) 3021… Read More »

What must be subtracted from the greatest five digit number so as to find the greatest five digit number divisible by 23 ? (A) 22… Read More »

What should be assigned to # so that 2582#724 is divisible by 11 ? (A) 4 (B) 5 (C) 6 (D) 7 Answer: (C) Explanation:… Read More »

What is the total number of prime factors in the expression 1212 x 1616 x 1818 ? (A) 46 (B) 154 (C) 3456 (D) 2… Read More »

What is the unit’s digit in the product (267)153 x (66666)72 ? (A) 7 (B) 6 (C) 1 (D) 2 Answer: (D) Explanation: The unit’s… Read More »

Which of the following are prime numbers ? (i) 147 (ii) 327 (iii) 547 (iv) 637 (A) 147 (B) 327 (C) 547 (D) 637 Answer:… Read More »