Explanation

Max marks each subject = 100, so total max = 100 + 100 + 100 = 300

Marks scored = 60% of 100 + 70% of 100 + 80% of 100  

= 60 + 70 + 80 = 210

Overall percentage = 210/300 × 100 = 70%

Last verified on 13-06-2026

Explanation

Let cost price = ₹100

1. Marked 40% above CP → Marked price = 100 + 40 = ₹140  

2. Discount 20% on MP → Selling price = 80% of 140 = 0.8 × 140 = ₹112

Profit = SP - CP = 112 - 100 = ₹12  

Profit % = 12/100 × 100 = 12%

Last verified on 13-06-2026

Explanation

Total candidates = 160  

Enrolled = 15% of 160 = 0.15 * 160 = 24

Not enrolled = Total - Enrolled  

= 160 - 24  

= 136

136 students were not enrolled.

Last verified on 26-05-2026

Explanation

Selling price after discount = 80% of list price, because 100% - 20% = 80%.

Let list price = L.

So 0.8 * L = 480  

L = 480 / 0.8  

L = 600

The list price was Rs 600.

Last verified on 26-05-2026

Explanation

Area of a triangle = 1/2 _ base _ height

Let old base = B, old height = H.  

Old area = 1/2 _ B _ H

New base = B + 25% of B = B + 0.25B = 1.25B  

New height = H - 20% of H = H - 0.20H = 0.80H

New area = 1/2 _ 1.25B _ 0.80H  

= 1/2 _ 1.00 _ B _ H  

= 1/2 _ B * H

New area = old area. It stays the same.

Last verified on 25-05-2026