Question
There are two trains A and B. A start from point X at 8
AM towards point Y. Another train B starts at 9 AM from point Y. If they meet at 11 AM and speed of A is 24km/hr, while that of B is 36 km/hr. Find distance between X and Y.Solution
Speed of train A = 24 kmph Speed of train B = 36 kmph Time taken by train A to meet train B at 11 AM = 3 hrs Time taken by train B to meet train A at 11 AM = 2 hr Distance travelled by train A = 3 × 24 = 72 km Distance travelled by train B = 2 × 36 = 72 km Therefore, total distance between X and Y = 72 + 72 = 144 km
In the periodic table of elements, what happens to the atomic radius as you move from left to right across a period?
Haematite ores is the ore of which metal?
_____ is used for making chemical apparatus like beakers, flasks, etc.
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Which of the following vitamins is called a water-soluble vitamin?
Air coolers are more suitable for –
A radioactive substance emits?
Match the following columns and choose the correct option:
Column I A. Leishmania donovani B. Trypanosoma gambiense C. Entamoeba histolytica D. W...
_____ are a group of chemicals that influence cell division and shoot formation.
Which among the following form of coal contains the highest percentage of carbon content?
