Question
Find the remainder when 7²⁰² is divided by 100.
Solution
Note: 7² = 49 7⁴ = 49² = 2401 ≡ 1 (mod 100) So 7⁴ ≡ 1 (mod 100) Now 202 = 4×50 + 2 7²⁰² = 7^(4×50+2) = (7⁴)⁵⁰ × 7² ≡ 1⁵⁰ × 7² (mod 100) ≡ 49 (mod 100) Remainder = 49.
More No. System Questions
166/? = √576 - 3.25
[∛(91125/19683 )- ∛(3375/5832 ) ] × ∛(512/9261) = ? - √(484/3969)
What value should come in the place of (?) in the following questions?
222 + 322 – 508 = ? * 5
25% of 240 + √? = (2/3) × 120
What value should come in the place of (?) in the following questions?
40% of 480 + √? = 25% of 300 + 126
- Find the value of the expression:
32 + 6 – 5 × [18 + 10 – 3 × (36 – 21)] (√2704 x 55)/(245 + 120) = ?
6 0 - 20 [8 + 12 {8-8 (20-12)+20}-40] ÷ 16 =?
