badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12

                        

This is question of Permutation And Combination.. In a Shooting competition, a man can score 5,4,3,2,1, or 0 points for each shot. Number of different ways in which he can score 30 in SEVEN shots. Answer= 420

3 years ago

Answers : (1)

Arun
25211 Points
							
Dear student
 

This can be solved using an organized casework:

5555550 can be arranged in 7 ways.

5555532 can be arranged in 42 ways.

5555442 can be arranged in 105 ways.

5555433 can be arranged in 105 ways.

5554443 can be arranged in 140 ways.

5544444 can be arranged in 21 ways.

7+42+105+105+140+21=420 

 

Regards

Arun (askIITians forum expert)

3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details