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Sound needs a medium to travel; it travels fastest in solids, especially metals like iron. In solids, particles are tightly packed, allowing faster vibrations. In gases, particles are far apart, so sound is slowest. Sound cannot travel in vacuum.
A, B and C enter into a partnership, A invest 6X + 15000, B invest 3X + 1000 and C invest X + 8000 for one year if B share is 4000 from total profit of ...
Amit and Sumit together start a business with investment of Rs. 1900 and Rs. (x + 900), respectively. If the profit earned after 5 years is Rs. 6000 and...
A and B started a retail store with initial investments in the ratio 6:7 and their annual profits were in the ratio 4:5. If A invested the money for 7 m...
Rs. ‘y’ was invested in scheme A at the rate of 21% per annum for (t+2) years. Rs. (y+2400) was invested in scheme B at the rate of 18% per annum fo...
The sum of the incomes of 'P', 'Q', 'R' together is Rs. 24000. 'P', 'Q' and 'R' spend 60%, 70%, and 65% of their respective incomes such that the ratio ...
X, Y and Z started a business by investing Rs. 'p', Rs. 'p + 2000' and Rs. '4p', respectively. 8 months later, both X and Z withdrew their respective in...
A, B and C enter into a partnership, A invest X + 6000, B invest 5X + 8000 and C invest X + 5000 for one year if B share is 6250 from total profit of 12...
A and B enter into a partnership with their initial sum of Rs.32000 and Rs.40000 respectively. After 8 months, a third person C also joins them with his...
‘A’ started a business by investing Rs. 1800. Four months later, ‘B’ joined by investing Rs. ‘x’. If at the end of the year ‘B’ received...