MEDIUM
10th CBSE
IMPORTANT
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Find the smallest number which when increased by 17 is exactly divisible by both 468 and 520

Important Questions on Real Numbers

EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 13
Find the greatest number of four digits which is exactly divisible by 15, 24 and 36.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 14
Find the largest four-digits number which when divided by 4, 7 and 13 leaves a remainder of 3 in each case.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 15
Find the least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3.
HARD
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 16
Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 17
Find the least number which when divided by 20, 25, 35 and 40 leaves remainders 14, 19, 29 and 34 respectively.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 18
In a seminar, the number of participants in Hindi, English and mathematics are 60, 84 and 108  respectively. Find the minimum number of rooms required, if in each room, the same number of participants are to be seated and all of them being in the same subject.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 19
Three sets of English, Mathematics and Science books containing 336, 240 and 96 books respectively have to be stacked in such a way that all the books are stored subject wise and the height of each stack is the same. How many stacks will be there?
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1B>Q 20
Three pieces of timber 42m, 49m and 63m long have to be divided into planks of the same length. What is the greatest possible length of each plank? How many planks are formed?