Question

The sum of three numbers is 98. If
the ratio of the first to second is 2:3
and that of the second to the third is
5:8, then the second number is:ਤਿੰਨ
ਸੰਖਿਆਵਾਂ ਦਾ ਜੋੜ 98 ਹੈ। ਪਹਿਲੀ ਦੋ ਸੰਖਿਆਵਾਂ ਦਾ
ਅਨੁਪਾਤ 2:3 ਹੈ ਅਤੇ ਦੂਸਰੀ ਅਤੇ ਤੀਸਰੀ ਸੰਖਿਆ ਦਾ
ਅਨੁਪਾਤ 5:8 ਹੈ, ਦੂਸਰੀ ਸੰਖਿਆ ਪਤਾ ਕਰੋ।
O
20
0 30
0 48
58​

Answer 1

Answer:

30

Explanation:

x+y+z=98

x/y=2/3 so x=2y/3

y/z=5/8 so z=8y/5

therefor, 2y/3+y+8y/5=98

so by simplification,y=30

Answer 2

Answer:

Explanation:

Let the three numbers be x, y and z.

Sum of the numbers is 98.

x + y + z = 98………………(i)

The ratio of the first to the second is 2/3.

x/y = 2/3.

x = 2/3 × y.

x = 2y/3.

The ratio of the second to the third is 5/8.

y/z = 5/8.

z/y = 8/5.

z = 8/5 × y.

z = 8y/5.

Put the value of x = 2y/3 and z = 8y/5 in (i).

2y/3 + y + 8y/5 = 98

49y/15 = 98.

49y = 98 × 15.

49y = 1470.

y = 1470/49.

y = 30 .

Therefore, the second number is 30.