Question

4. Form equations for the following cases.
a. Rohan has 3 less than four times the
number of candies that Shivani has. Rohan
has 17 candies. (Take k as the number of
candies Shivani has.)
b. Rahul received 10 more today than two
times the money he received yesterday.
Frank received 50 today. (Take p as the
money received yesterday.)
Prabha read 60 pages on Sunday, which was
10 more than two times the number of pages
she read on Saturday. (Take the number of
pages read on Saturday as y.)
d. Surbhi is 3 years older than three times her younger brother's age. Surbhi's age is 27
years. (Take her brother's age as x.)​

Answer 1

Answer:

Answers of

a. 5 candles

b. Rs 20

c. 25 pages

d. 8 years

Step-by-step explanation:

a. let no of candles shivani be k

rohan has 3 less than 4 times

the no of candles shivani has and rohan has 17 candles

So 4k - 3 = 17

4k = 17+3

4k = 20

k =20/4

k = 5

b. Let money that rahul received yesterday be p

The money he received today is 10 more than 2 times the money he received yesterday , which is 50 .

So 2p +10 = 50

2p = 50-10

2p =40

p = 40/2

p = 20

c. let pages read on Saturday be y

pages read by prabha on Sunday 10 more than 2 times the pages read on Saturday, which is 60 .

So 2y +10 =60

2y = 60-10

2y =50

y = 50/2

y =25

d. let the age of surbhi's brother be x

surbhi is 3 more than three times the age of her brother , which is 27 years .

So 3x + 3 = 27

3x =27 -3

3x =24

x =24/3

x = 8

HOPE IT HELPS