Please answer and explain too
A man is running around a circular track with uniform speed and a source of light is placed on the ground at the centre of the circular track. The shadow of man appears on a wall tangential to the circular track at the point of start. If the height of shadow becomes twice the height of the man for the first time after 30 minutes of starting, then the man will complete 10 rounds after (1) 15 hours (2) 20 hours (3) 30 hours (4) None of these
First 100 positive even nos are written and multiples of 10 are removed. what is the unit digit of the product of the remaining nos 1)2 2)4 3)6 4)8 approach pls
Need approach: How many natural numbers less than 200 will have 12 factors?
Maya has 5 red, 4 yellow, 6 pink and 5 white roses. she wants to make a bouquet of at least 3 flowers. In how many ways can she choose the flowers ?
post your approach
approach plz answer is 3 option
Can someone help me with question no. 19 Topic:- Interests
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Anyone with its solution? Ans is option 4
Find no of integral solution |x|+|y|+|z|=15 ?
Please solve question 37
ABCDEF is a regular hexagon with AB = 5 cm. Nine line segments are drawn in the hexagon in such a way that AB, DE and these line segments form eleven equidistant parallel lines. If the ends of each of the line segments lie on the perimeter of the hexagon, then what is the sum of the lengths of the nine line segments?
Though after solving, the eqn reduces to x, so answer can be either (1) or (2). How to pin point the answer, that's the main question.
If a, b are integers then how many ordered pairs (a, b) satisfy the equation a^2+ab+b^2 = 1?
A is 80% more efficient than B who is 60 % more efficient than C. A takes 40 days less than B to complete a work. A starts the work and works for 25 days and then B takes over. B then works for next 30 days and then stops.In how much more time can C complete the remaining work?
Approach please...
Topic- Time work
In how many ways can 10 boys be selected from 20 if Rajesh and Ramesh are not selected together? Please share the approach..
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