Question
Two towns D and E are 456 km apart. A car leaves D at
5:15 a.m. at 57 km/h. Another car leaves E at 6:45 a.m. towards D at 76 km/h. When will they meet?Solution
Time gap = 1.5 hrs → Distance = 57 × 1.5 = 85.5 km
Remaining = 456 – 85.5 = 370.5 km
Relative speed = 133 km/h
Time = 370.5 / 133 ≈ 2.786 hrs = 2h 47m
Meeting time = 6:45 a.m. + 2h 47m = 9:32 a.m.
Neha and Priya launched a venture by putting in Rs. 9000 and Rs. 7000, respectively. After 10 months, Neha reduced her investment by 20%, and Priya rais...
Raj invested Rs.'x' and Mohan invested Rs.7000 in a partnership. After 5 months, Raj increased his investment by 50% and after 7 months Mohan decreased ...
Nitin, Rahul, and Anjali started a business with initial investments in the ratio 5:6:7 respectively. After one year, Anjali, Nitin, and Rahul made addi...
Ravi and Rohit started a business in partnership. Ravi invested Rs. 15,000. Rohit left the business after 6 months. If at the end of the year, the profi...
In a joint business venture, 'A' contributes Rs. 2400, which is 25% less than 'B’s investment. While 'A's investment lasts for 8 months, 'B' only inve...
'A' and 'B' invested (x + 40) and (x - 80) rupees, respectively, in a business. After one year, they made additional investments of Rs. 520 and Rs. 120,...
Puneet and Malti ventured into a business with Rittu. Puneet's initial investment is 20% less than Malti's. The ratio of Puneet's initial investment to ...
‘Karan’ invested Rs. 3,000 in a business. After 5 months, ‘Lokesh’ joined with 60% of Karan’s investment. If the total profit at the end of th...
A and B start a business by investing Rs 24,000 and Rs 18,000 respectively. After 6 months, A withdraws one-fourth of his capital, and B adds Rs 6,000 m...
A & B invested Rs. 2X and Rs. (2X + 900) for same period of time in a business. If A gets Rs. 2500 as profit share out of total profit of Rs....
