Question

I need answer for all question plz answer well unwanted ans will be reported​

Answer 1

Step-by-step explanation:

5.Let nitya has marble = x

Number of marble naßreen has = 3x

nasreen gives number of marbles to nitya = 7

nitya left with number of marbles = 3x-7=17

3x=24

x=8

Nitya has 8 marbles

6. Let mothers age be = x

tarun age = 1/3x

sum of their ages = 48

x+1/3x=48

4x/3=48

x=(48×3)/4

x= 36 yrs.

mother age = 36 yrs

tarun age = 1/3×36= 12 years

7. Let number of girls in class= x

A/q

Number of boy =x+11

total number of students in class =75

x+x+11=75

2x=75-11

2x = 64

x=32 girls

Number of boys = 32+11=43 boys

8. Let two consecutive number be = x, x+3

x+x+3= 53

2x =53-3

2x=50

x =25

x+3 = 25+3 =28year

10. let breadth be = x cm

length = x+5 cm

P=2(l+b)

96=2(2x+5)

96 = 4x + 10

x = 86/4

x= 21.5 cm

length = 21.5 +5 = 26.5 cm