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In how many ways can 6 coins be changed from, 20 one rupees coins, 10 fifty paisa coins, and 7 twenty paisa coins?

NETNUST Entry TestMathematics

Out of 15 points in a plane, no three are on a straight line except 8 points which are collinear. How many triangles can be formed by joining them?

NETNUST Entry TestMathematics

Everybody in a room shakes hand with everybody else. The total number of hand shakes is 66. Then the number of person in the room are

NETNUST Entry TestMathematics

In a conference of 8 person each of them shakes hand with each other once daily. Then the number of ways of shaking hand is

NETNUST Entry TestMathematics

A person has 6 friends. In how many ways can he invite one or more of his friends to the party

NETNUST Entry TestMathematics

$^{15}C_{13}+^{15}C_{14}$=

NETNUST Entry TestMathematics

If $^{2n}C_{3}:^{n}C_{2}=11:1$ then n=

NETNUST Entry TestMathematics

$^{n}C_{r}+2^{n}C_{r-1}+^{n}C_{r-2}$=

NETNUST Entry TestMathematics

If $^{r+2}C_{8}:^{r-2}C_{4}=57:16$ then r=

NETNUST Entry TestMathematics

If $^{15}C_{r}:^{15}C_{r-1}=11:5$ then r=

NETNUST Entry TestMathematics

$^{n}P_{r}+^{n}C_{r}$=

NETNUST Entry TestMathematics

$^{n}C_{r}+^{n}C_{r-1}$=

NETNUST Entry TestMathematics

If $^{n}C_{5}=^{n}C_{4}$, then n=

NETNUST Entry TestMathematics

$^{n-1}C_{r}+^{n-1}C_{r-1}$=

NETNUST Entry TestMathematics

If $^{n}C_{12}=^{n}C_{8}$ then n=

NETNUST Entry TestMathematics

In how many ways can a party of seven persons arrange themselves around a circular table?

NETNUST Entry TestMathematics

$\frac{16!}{5!}+\frac{16!}{5!}$=

NETNUST Entry TestMathematics

In how many ways can 5 boys and 5 girls be seated in a circle, so that no two boys are together

NETNUST Entry TestMathematics

How many words beginning with C and ending with Y can be formed from the letters of the word COURTESY?

NETNUST Entry TestMathematics

If $^{n}P_{2}=30$, the value of n is

NETNUST Entry TestMathematics

How many 5-digit multiples of 5 can be formed from the digits 2, 3, 5, 7, 9 when no digits repeat

NETNUST Entry TestMathematics

How many arrangements of the letter of the word UNUSUAL can be made

NETNUST Entry TestMathematics

In how many ways can a party of seven persons arrange themselves in a row of seven chairs?

NETNUST Entry TestMathematics

There are twelve students in a class. In how many ways can the twelve students take three different tests if four students are to take each test?

NETNUST Entry TestMathematics

How many arrangements of the letters of the word MATHEMATICS, taken altogethers, can be made

NETNUST Entry TestMathematics