Question

The coach of a cricket team buys 7 bats and 6 balls for RS 3800 later he buys 3 bats and 5 balls for RS 1750 .find the cost of each bat and ball

Answer 1

This can be solved by any of the methods but I have sloved it by substitution method

Answer 2

ʟᴇᴛ's ʙᴀᴛ ɪs x ᴀɴᴅ ʙᴀʟʟ ɪs ʏ.

sᴏ,

7x+6ʏ=3800 ᴇϙ.1

3x+5ʏ=1750 ᴇϙ.2

ʙʏ sᴜʙsᴛɪᴛᴜᴛᴇ ᴍᴇᴛʜᴏᴅ.

x=3800-6ʏ/7 ᴇϙ.3

ᴘᴜᴛᴛɪɴɢ x=3800-6ʏ/7 ɪɴᴛᴏ ᴇϙ.2

ᴛʜᴇɴ,3(3800-6ʏ/7)+5ʏ=1750

11400-18ʏ+35ʏ=12250

17ʏ=850

ʏ=850/17

ʏ=50

ᴘᴜᴛᴛɪɴɢ ʏ =50 ɪɴ ᴇϙ.1

ᴛʜᴇɴ,7x+6×50=3800

7x+300=3800

7x=3800-300

7x=3500

x=3500/7

x=500

by-@muskanyadav21