ICSE Class 9 Answered
Please answer the 3rd question.

Asked by nishabr7 | 12 Sep, 2018, 08:12: PM
Let,
the present age of Mother = x years
the present age of daughter = y years
According to the 1st condition,
(x - 4)= 4(y - 4)
x - 4y = -12 ....(i)
According to the 2nd condition,
(x + 6)= 2
(y + 6)

2x - 5y = 18 ....(ii)
Multiply (i) by 2 , we get
2x - 8y = -24 ....(iii)
Subtracting (ii) form (iii), we get
-3y = - 42
y = 14
put y = 14 in (i), we get
x = 4y - 12 = 4 × 14 - 12 = 44
Therefore,
the present age of Mother = x years = 44 years
the present age of daughter = y years = 14 years
Answered by Yasmeen Khan | 14 Sep, 2018, 11:56: AM
Application Videos
Concept Videos
ICSE 9 - Maths
Asked by manav78143374001 | 24 Aug, 2023, 12:23: PM
ICSE 9 - Maths
Asked by kedarkaregaonkar82 | 11 Aug, 2023, 09:12: PM
ICSE 9 - Maths
Asked by adarshlw2021 | 18 Jul, 2023, 09:20: AM
ICSE 9 - Maths
Asked by saleemmohd7671 | 06 Jun, 2023, 06:17: PM
ICSE 9 - Maths
Asked by raunakchaudhary412 | 05 Jun, 2023, 08:27: PM
ICSE 9 - Maths
Asked by aditisingh1012010 | 05 Jun, 2023, 02:36: PM
ICSE 9 - Maths
Asked by naitikc257 | 23 May, 2023, 03:00: PM