Explanation

Sweets for children = 80 × 15 = 1200

Sweets for youngsters = 10 × 25 = 250

Total sweets = 1200 + 250 = 1450

Last updated question by NS on 11 May 2026

Explanation

Average of 8 persons = 12.5

So total weight:

$$8 times 12.5 = 100$$

One person of 18 kg is replaced by 10 kg:

New total:

$$100-18+10=92$$

New average:

$$92÷8=11.5$$

$$Last\; updated\; question\; NS\; on\; 10\; MAY\; 2026$$

Explanation

Ratio of boys : girls = 9 : 11

Total parts:

$$9+11=20$$

Total students = 80

Girls

$$frac{11}{20} times 80 = 44$$

$$Last\; updated\; question\; NS\; on\; 10\; MAY\; 2026$$

Explanation

Assume cost price = 100

Marked price = 25% above CP:

$$100+25=125$$

Discount = 10% on 125:

$$10\%\text{ of }125=12.5$$

Selling price:

$$125-12.5=112.5$$

Profit

$$112.5 - 100 = 12.5$$

$$Last\; updated\; question\; NS\; on\; 10\; MAY\; 2026$$

Explanation

Let original price = x

Step 1: Apply 25% discount

Discounted price =

$$x-25\%\text{ of }x=0.75x$$

Step 2: Apply tax (55% on discounted price)

Final price =

$$0.75x\times 1.55=1.1625x$$

Given final price = 1260

1.1625x=1260
x=1260​/1.1625=1083.87≈1084

Last updated question NS on 10 MAY 2026