Question

$please \: answer \: the \: following \:$
$in \: maths$
$according \: to \: class \: 7$
​

Answer 1

Answer:

Q.1) b)10%

Step-by-step explanation:

Let N% of 2/7 is 1/35

∴ (2/7 x N) / 100 = 1/35

⇒ N = 1/35 x 7/2 x 100 = 10%

Answer 2

Answer:

question 4 ans is in the picture

Q1. x/100 * 2/7 = 1/35

= 1 /35 *350

x = 10

Q 2. Let the base and height of a right angled triangle be b,h respectively

Given area of a right angled triangle is 40 times its base

1/2 bh=40b

⟹h=80 cm

Height of a right angled triangle is 80 cm

Q. 3 Speed of car = 3 whole 1/9 km/hr

=28/9 km/hr

time taken to travel x km=5 whole 1/7 hours

=36/7 hr

we know that, distance = speed * time

or, x = 28/9*36/7 km

or, x = 16 km

So. the car will travel 16 km in 36/7 hours