Question

please do 14&16 fast

Answer 1

Hope u like my answer
====================
14)

=> Let the age of B be x yrs

=> Age of A =
$\bf \frac{2}{3} x \: \: \: yrs$
____________________
Before 5 yrs
=-=-=-=-=-=-
=> the age of B = (x-5). yrs

=> The age of A =
$\bf\frac{3}{5} (x - 5) \: = s\: (\frac{2}{3}x - 5) \: yrs$
now..

$= > \frac{3}{5} x - 3 = \frac{2}{3} x - 5 \\ \\ = > \frac{2}{3} x - \frac{3}{5} x = 5 - 3 \\ \\ = > \frac{10x - 9x}{15} = 2 \\ \\ = > x = 15 \times 2 = \bf \: 30$
so..

=> present age of A = (x+5) =30+5=35 yrs

=> present age of B = x = 30 yrs
_______________________________

16)

=> Let cost of a ball be Rs x

=> cost of a bat = Rs (1050 +x)


=> Cost of 6 identical bats = Rs 6(1050+x)

=> Cost of 9 identical balls =Rs 9x

_________________________
so..

=> 6(1050+x) +9x = 7500

=> 6300 + 6x +9x =7500

=> 15x = 7500-6300 = 1200

=> x = 1200/15 = Rs 80

_______________________
Cost of a ball is Rs x = Rs 80

Cost of a bat =Rs (1050+80)= Rs 1130
-------------------------------------------------------
hope this is ur required answer

proud to help u