Question

in a orchad of 400 trees, 35% of mango trees, 42% are apple tree and the rest were grapes vines . how many grape vines are there?

Answer 1

Mango tree

35/100 x 400

=140

Apple tree

42/100 x 400

= 168

140 + 168 + x = 400

x + 308 = 400

x = 400 -308

x = 92

Therefore number of grape vines = 92

Answer 2

no. of mango trees = 35/100*400 = 120
no.of apple trees = 42/100*400 =168
thus let grape vine be x ,
120+168+x=400
328+x=400
X=72