Six ‘$+$’ and four ‘$-$’ signs are to placed in a straight line so that no two ‘$-$’ signs come together, then the total number of ways are

  • [IIT 1988]
  • A

    $15$

  • B

    $18$

  • C

    $35$

  • D

    $42$

Similar Questions

The number of ways in which four letters of the word $‘MATHEMATICS$’ can be arranged is given by

The number of ways in which any four letters can be selected from the word ‘$CORGOO$’ is

If ${ }^{n} P_{r}={ }^{n} P_{r+1}$ and ${ }^{n} C_{r}={ }^{n} C_{r-1}$, then the value of $r$ is equal to:

  • [JEE MAIN 2021]

If $^n{C_3} + {\,^n}{C_4} > {\,^{n + 1}}{C_3},$ then

The number of four-letter words that can be formed with letters $a, b, c$ such that all three letters occur is

  • [KVPY 2019]