Question
A 5 V battery of negligible internal resistance is
connected across a 190 V battery and a resistance of 37 Ω as shown in the figure. Find the value of the current.Solution
Value of current, i = (190 – 5)/37 = 5A
Two numbers P and Q are in the ratio 5:8. If X is added to the smaller number and 12 is subtracted from the larger number, the ne...
In how many days can ‘Q’ alone complete the work?
I. P, Q and R together can complete the work in 9`(3)/(13)` days.
II. P and ...
In a lottery, there are 11 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
A sum of Rs. 663 is divided among X, Y and Z such that X gets Rs. 156 more than Y. Y gets Rs. 78 more than Z. Find the share of Z?
Sam ranked ninth from the top and thirty – eighth from the bottom in a class. How many students are there in the class?
What is the value of `(0.55xx4.5)/(0.81) ?`
The number of five–digit telephone numbers having at least one of their digits repeated is
₹ 27,600 is distributed among Thomas, David and Vijay in such a manner that 1/7 of the share of Thomas, 1/3 rd of the share of David and 1/2 of the sh...
Each exterior angle of a regular polygon measures 9°. How many sides does the polygon have?
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