Get Started with ixamBee
Start learning 50% faster. Sign in now
Let speed of car B is ‘x’ km/h Speed of car A = ‘x – 4’ km/h So, 90/(x – 4) – 80/x = 1/2 => (90x – 80x + 320)/{x(x – 4)} = 1/2 => x2 – 4x = 20x + 640 => x2 – 24x – 640 = 0 => x2 – 40x + 16x – 640 = 0 => x(x – 40) + 16(x – 40) = 0 => (x + 16)(x – 40) = 0 => x = 40 Speed of car A = 40 – 4 = 36 km/h Desired distance = 36 × 3.75 = 135 km
Sonia goes to a clothing store with a certain amount of money. She can buy 90 shirts or 30 trousers with the money she has. However, she decides to save...
A girl spent 15% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 5:3. If the difference of the income ...
A car's value decreases by 20% every year. If the car was purchased for Rs 3,30,000, what will be the total percentage decrease in its value over a 3-ye...
A person saves 25% of his monthly income. If his monthly is increased by 35% and he still saves the same amount as before then find percentage increase ...
The income of Tina is Rs.20000 and she saves 25% of her income. The savings of Kajal is Rs.1200 more than that of Tina and she spends 50% of her income....
A spent 30% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 21% and 14% to his mother and brother, respec...
The price of wheat has increased by 45%. Mohit has decided to spend only 16% more than what he initially did on buying wheat. What is the percentage dec...
The income of Tina is Rs.24000 and she saves 15% of her income. The savings of Kajal is Rs.2000 more than that of Tina and she spends 60% of her income....
The respective ratio of monthly income of A to monthly income of B is 11:12, and A’s saving is (100/17)% more than B’s saving. Find the expenditure ...
The monthly income of Vivek and Sohan together is Rs. 46000. The income of Vivek and Sohan is increased by 20% and 30% respectively. The new income of ...
