Each of the following 90,120,230,350,470, etc. is divisible by 10.

Which of the following is correct (A) (n^(2))! is divisible by (n!)^(4)(B)(an+bm)! is divisible by n!m!(C)n(n+1)...(n+10) is divisible by 11!(D)(400!)/(200!) is divisible by 13^(13)

Write (T) for true and (F) for false against each of the following statements : (i) If a number is divisible by 4. it must be divisible by 8 . (ii) If a number is divisible by 8 . it must be divisible by 4 . (iii) If a number divides the sum of two number exactly. it must exactly divide the num .bers separately. (iv) If a number is divisible by both 9 and 10 . it must be divisible by 90. (v) A number is divisible by 18 if it is divisible by both 3 and 6 . (vi) If a number is divisible by 3 and 7 . it must be divisible by 21. (vii) The sum of two consecutive odd number is always divisible by 4 . (viii) If a number divides two number exactly. it must divide their sum exactly.

Without actual division show that each of the following numbers is divisible by 5:55 (ii) 555 (iii) 5555 (iv) 50005

Which of the following numbers are divisible by 5 and by 10? 198645

Which of the following numbers are divisible by 5 and by 10? 384050

Which of the following numbers are divisible by 5 and by 10? 196450

Which of the following numbers are divisible by 5 and by 10? 1386425

Which of the following numbers are divisible by 5 and by 10? 432190

Which of the following numbers are divisible by 10? (A) 500505 (B) 8179320

complete the following series 10, 15, 30, 45, 90, ….