Question

please help with 1 and 2
question

Answer 1

1).......
Solution- Let his monthly income be 'x'
He saves 18% of x per month
But he saves ₹3780

therefore, 18x÷100=3780
x = 3780×100÷18
x = 21,000
therefore,the mans monthly income is ₹.21,000

2)........
Solution-Let ansh's old salary be x

he got increase by 20% i.e 20% of x
his new salary is ₹.30,600
therefore, 30600 = 20%of x + x
30600= 20x÷100+x
30600 = 120x÷100
30600×100÷120 = x
25500 = x

x = 25,500
therefore,Ansh's old income was ₹.25,500

3)...........
Solution-Ceiling price of fan is ₹.1,250
Discount given is 6%

therefore, Discount Amount = 6% of 1250
= 6÷100×1250
= 75
Discount amount is ₹.75
Sale price = Selling price - Discount
= 1250 - 75
= 1175

therefore,Sale price of fan is ₹.1,175

4)..........
Solution-Marked price of Refrigerator is ₹.14,650
Sales tax is 6%
Taxable amount = 6% of 14650
= 6 ÷100×14650
= 879
Sale tax amount is ₹.879

therefore, Total price = Marked price + Tax
= 14650+879
= 15529

therefore,Total price for refrigerator is ₹.15,529.

*It can also be solved by different methods*