Question : The smallest among the numbers $2^{250},3^{150},5^{100}$, and $4^{200}$ is:

Option 1: $4^{200}$

Option 2: $5^{100}$

Option 3: $3^{150}$

Option 4: $2^{250}$

Question : The breadth of a rectangular floor is $\frac{3}{5}$ of its length. If the area of the floor is 60 m², then what is the difference between the length and breadth of the floor?

Option 1: 6 m

Option 2: 7.5 m

Option 3: 5 m

Option 4: 4 m

Question : The length of each side of a rhombus is equal to the length of the side of a square whose diagonal is $40\sqrt2$ cm. If the length of the diagonals of the rhombus is in the ratio $3:4$, then its area ( in cm²) is:

Option 1: 1550

Option 2: 1600

Option 3: 1535

Option 4: 1536

Question : $\triangle \mathrm{RMS}$ is right-angled at M. The length of the base, RM = 4 cm and the length of perpendicular MS = 3 cm. Find the value of $\sec R$.

Option 1: $\frac{3}{4}$

Option 2: $\frac{5}{4}$

Option 3: $\frac{4}{5}$

Option 4: $\frac{2}{5}$

Question : 50% of A is equal to 80% of B. What is the ratio of A to B?

Option 1: 5 : 8

Option 2: 5 : 4

Option 3: 4 : 5

Option 4: 8 : 5