Explanation

Let's check the alphabet positions:

B = 2  

E = 5  

I = 9  

N = 14  

T = 20  

? = 

Differences:  

5 - 2 = +3  

9 - 5 = +4  

14 - 9 = +5  

20 - 14 = +6  

Pattern: +3, +4, +5, +6... so next should be +7

20 + 7 = 27

Alphabet wraps after 26, so 27 - 26 = 1

1st letter = A

Last verified on 01-09-2026

Explanation

A fair coin has 2 possible outcomes: Head and Tail.

Probability of getting a Head = 1/2.

Last verified on 01-09-2026

Explanation

• In a spreadsheet, =A1+B1 tells the program to add the values in cells A1 and B1.
• The calculated result is displayed in cell C1.
• The + operator is used for addition.

Last verified on 01-09-2026

Explanation

0.88 + 0.07 = 0.95  

0.95 + 0.4 = 1.35

Last verified on 01-09-2026

Explanation

For successive percentage increases you use:

Total % increase = A + B + (A × B / 100)

So: 

= 15 + 40 + (15 × 40 / 100) 

= 15 + 40 + 6 

= 61%

Last verified on 01-09-2026

Explanation

2² + 3² = 13

4² + 1² = 17

3² + 4² = 25

Last verified on 01-09-2026

Explanation

• The person moves 15 km north, then 10 km west, then 15 km south.
• The north and south movements cancel out, leaving 10 km west.

Last verified on 01-09-2026

Explanation

2.5% Zakat on Rs. 100,000 is Rs. 2,500. Am

Calculation: 100000 x 2.5 / 100 = 2500

Last verified on 02-09-2026

Explanation

Let daughter age = x

Father age = 5 times daughter age = 5x

Sum of ages = 50

x + 5x = 50

6x = 50

x = 50 / 6 = 8.33

So daughter = 8.33 years

Father = 5 x 8.33 = 41.67 years

Last verified on 02-09-2026

Explanation

Use the set formula: 

Students who study CS or Math = CS + Math - Both  

= 55 + 50 - 10  

= 95 students

Students who study neither = Total students - Students who study CS or Math  

= 100 - 95  

= 5 students

Last verified on 02-09-2026