The number of terms in the sequence `1,3,6,10,15,21,......500`

What will be the next number in the sequence: 1,3,6,10,15,.................

number of terms common to the two sequences 17,21,21,......,417 and 16,21,26,......,466 is (A) 19(D)22 (B) 20 (C) 21

Find the number of common terms to the two sequences 17,21,25,...,417 and 16,21,26,...,466.

Find the number of common terms to the two sequences 17,21,25,...,417 and 16,21,26,...,466.

Find the number of common terms to the two sequences 17,21,25,...,417 and 16,21,26,...,466

Find the number of common terms to the two sequences 17,21,25,...,417 and 16,21,26,...,466.

Find the number of common terms to the two sequences 17,21,25,...,417 and 16,21,26,...,466.

Number of terms common to the two sequences 17,21,25,.........,417 and 16,21,26,......,466 is