" (b) "30,42

Find the HCF of 30,42 and 102.

Find H.C.F of the following numbers: 30,42

Find the HCF of 30, 42 and 135.

Find the HCF of 30, 42 and 135.

In a classroom, there are certain number of benches. If 6 students are made to sit on a bench, then to accommodate all of them, one more bench is needed. However, if 7 students are made to sit on a bench, then after accommodating all of them, space for 5 students is left. What is the total number of students in the class? (a) 30 (b) 42 (c) 72 (d) None of these

2, 6, 12, 20, 30, 42, 56, (......) (a) 60 (b) 64 (c) 72 (d) 70

The next number of the sequence 2,6, 12, 20, 30, 42, 56. — Is