Question

teacher of class X 22 2520 notebooks for rupees 1255 she buys 38 notebooks and 30 pens for same find for another section for rupees to 2122 to represent this situation algebraically .
please show solution with substitution method​

Answer 1

Answer:

Present total age of 4 members =24×4=96+(10×4)=136

Preset total age of 6 members (including 2 children) =24×6=144

So sum of the ages of the two children =144−136=8 yrs.

Thus the ages of the children will be 5 yrs and 3 yrs.

As (5+3=8 and 5−3=2)

So, the youngest child's age is 3 years old