A year ago, the cost of maruti and figo are in the ratio of 3 : 4. The ratio of present and past year costs of maruti and figo are 5 : 4 and 3 : 2. If the sum of their present cost is 7.8 lacs. Find the cost of figo a year ago
Answers
Answer:
The cost of figo, a year ago = 3.2 L
Step-by-step explanation:
Let the cost of Figo a year ago Fl = x
∴ A year ago, ration of maruti and figo = 3:4
Cost of maruti last year = Ml
Ml : Fl = 3:4
∴ Ml = (3/4) Fl
∴ Ml = 0.75x .... (1)
In present year , for maruti, the ration given as 5:4
Mpresent : Ml = 5:4
∴ Present cost of maruti Mp = (5/4)Ml
substituting from eq. 1
Mp = 1.25 × 0.75 x
Mp = 0.9375 x .... (2)
For figo
Fp : Fl = 3:2
∴ Fp = 1.5 x ... (3)
As give,
Sum of maruti and figo for present = 7.8 L
Mp + Fp = 7.8 L
substituting values from eq 2 and 3, we get
0.9375x + 1.5x = 7.8
∴ 2.4375x = 7.8
∴ x = 7.8 ÷ 2.4375
∴ x = 3.2 L
∴ The cost of figo, a year ago = 3.2 L
Answer:3.2 lack
Step-by-step explanation:
maruti : figo
past 3: 4
.......................................
present : past
maruti 5 : 4
figo 3 : 2
.............................................
present cost of maruti / past cost of maruti = 5/4
present cost of maruti = 5/4***past cost of maruti
= 5/4*** 3
= 15/4
present cost of figo /past cost of figo = 3/2
present cost of figo = 3/2***past cost of figo
= 3/2*** 4
= 12/2 = 6
now ratio become
present cost of maruti : present cost of figo
15/4 : 6
take lcm 5 : 8
present cost of figo = 8/13 ***7.8 lac
4.8 lac
past cost of figo by ratio method
3 unit of figo is = 4.8 lac
1 unit of figo = 1.2 lac
2 unit of figo = 3.2 lac