Abdul s height was 160 cm on his 15th birthday . It was 172 cm on his 16th birthday . What was the percendage increase in his height?

9.375 %

Step-by-step explanation:

172-160=12

height increase ÷ original height × 100 %

= 12÷160×100%

=9.375 %

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.