exam Maths Puzzle

How many number of times will the digit ‘7' be written when listing the integers from 1 to 1000?

A.

271

B.

300

C.

252

D.

304

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exam Other Question


What is the total number of ways in which Dishu can distribute 9 distinct gifts among his 8 distinct girlfriends such that each of them gets at least one gift?

A.

72 × 8!

B.

144 × 8!

C.

36 × 8!

D.

9!
In how many ways can 15 people be seated around two round tables with seating capacities of 7 and 8 people?

A.

15!
8!

B.

7!×8!

C.

15C8×6!×7!

D.

2×15C7×6!×7!

E.

15C8×8!