Question
Two boats X and Y start towards each other from two
places, 155 km apart. Speed of the boat X and Y in still water are 14 km/hr and 17 km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (14 + x) t + (17 – x) t = 155 ⇒ 14t + 17t = 155 ⇒ 31t = 155 ⇒ t = 155/31 = 5 hours
If '+' means ' –', '–' means '×', '×' means '÷' means '+', then 15 – 3 +10×5 ÷ 5 = ..........
In a certain code language, ‘GOLF’ is coded as ‘1286’ and ‘WOLF’ is coded as ‘6428’. What is the code for ‘W’ in that language?Â
Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varian...
Statements:
Some mugs are jars.
All jars are bottles.
All glasses are mugs.
Conclusions:
I. All glasses are jars....
Select the correct combination of mathematical signs to replace * signs and to balance the given equation:
72 * 144 * 72 * 6 * 40 * 110
Which two numbers should be interchanged to make the given equation correct?
14 + 32 − 56 ÷ 28 × 5 = 40
Select the option that represents the correct order of the given words as they would appear in an English dictionary.
1. Machine
2. Macabr...
Seven boxes V, U, T, S, R, Q and P are kept one above the other, but not necessarily in the same order. S is at the lowermost position. Only V is kept a...
Identify the diagram that best represents the relationship among the classes given below.
Players, Singers, Persons
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