Which of the following will completely divide 14,874?

Which of the following will completely divide 20,683?

Find the unit digit of 128 × 96 × 43 × 24.

Find last digit of 2³³ × 6⁶ × 7⁵.

Find the last digit of 9⁸¹ – 4¹⁶.

Find the last digit of 5¹²⁴ + 6¹²¹.

Rahul rides his bicycle for 10 km at a speed of 12 km/hr. He rested for 10 minutes and again travels 12 km at 10 km/hr. Find the average speed of Rahul. 

A train reduces its speed by 1/3 of its normal speed due to which it took 1 hour extra to reach its destination. Find the time (in hours) taken by the train to reach its destination when traveling at its normal speed. 

A man travels half of the journey at 30 km/hr and the remaining half at 45 km/hr. If he travels for 5 hours to cover his entire journey find the total distance traveled by the man. 

A train running at a speed of 18 m/s crosses a pole in 12.5 seconds. Find the length of the train. 

Find the approximate value 

$\frac{0.2 + 0.3 + \sqrt{0.24}}{\sqrt{0.2} + \sqrt{0.3}}$ 

Simplify 

$\frac{\left(\right. 7^{2} + 4^{2} + 56 \left.\right) - \left(\right. 7^{2} + 4^{2} - 56 \left.\right)}{28}$ 

If $(343)^{y}$= 16807. Find the value of (y). 

If a # b = (3a – 2b) + (ab). Find 3 # 5. 

If a & b = $\left(\right. \frac{a}{2} + 2 b \left.\right)$(b + a). Find (4 & 2) + (2 & 1).