For the following questions answer them individually
There is a metro train between stations X and Y every 15 minutes. An announcement was made at station that next train will depart in another 11 minutes as the previous train left at 2.18 PM. At what time was the announcement made?
Nine persons J, K, L, M, N, O, P, Q and R are sitting in a row facing the same direction. L is at the right of M andat the third place at the right of N. K is at one end of the row. Q is seated adjacent to both O and P. O is at the third place at the left of K. J is next to left of O. Which one of the followingis true?
If $$\Box$$ and $$\rightarrow$$ are defined by $$a \Box b = \frac{a - b}{a + b}$$ and $$a \rightarrow b = ab$$ then $$\frac{(66 \Box 6) \rightarrow 66}{55 \Box 5} =$$
By applying which one of the following meaning of arithmetical signs will the value of $$700 - 10 \div \frac{1}{2} \times 35 + 70 = 0$$
If $$\rightarrow$$ stands for addition
$$\leftarrow$$ stands for subtraction
$$\uparrow$$ stands for division
$$\downarrow$$ stands for multiplication
🡕 stands for equal to
Then which one of the following is true.
A, B and C are co-workers in a company and their total salary is Rs. 94,000/-. The salaries of A and B are in the ratio 5 : 6; that of B and C are in the ratio 3:2. If the salaries of C and A are in the ratio 4:5 then the salary of B ( in thousands of rupees) is
If $$\sqrt{15 - 2\sqrt{35} - 2\sqrt{15} + 2\sqrt{21}} = \sqrt{a} - \sqrt{b} + \sqrt{c}$$ then $$a^2 - c^2 =$$