App Logo

No.1 PSC Learning App

1M+ Downloads

3 chairs and 2 table cost Rs.1750 and 5 chairs and 3 tables cost Rs. 2750. What is the cost of 2 chairs and 2 table.

ARs. 1400

BRs. 1250

CRs. 1500

DRs. 1750

Answer:

C. Rs. 1500

Read Explanation:

Let cost of chair be 'x' and table be 'y' 3x+2y=1750 ---- (1) 5x+3y=2750 ----(2) ------(1)*5 15x+10y=8750 --- (3) ------(2)*3 15x+9y=8250 --- (4) (3) - (4) y=500 3x+2y = 1750 3x = 1750-100 3x = 750 x=250 Cost of 2 chairs and 2 tables =2x250+2x500 = 500+1000=1500


Related Questions:

sin²40 - cos²50 യുടെ വില കാണുക

6.3 × 6.3 + 2 × 6.3 × 3.7 + 3.7 × 3.7 ന്റെ മൂല്യം എന്താണ്?

Which is the smallest?

20 - 4 = A - 8 ആയാൽ A യുടെ സ്ഥാനത്ത് വരുന്ന സംഖ്യ ഏത്?

-3 x 4 x 5 x -8 =