What is the product of additive inverse of 7 and multiplicative inverse of 14?
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A cement company earns a profit of Rs 8 per bag of white cement sold and a loss of Rs 5 per bag of grey cement sold. The company sells 3000 bags of white cement and 5000 bags of grey cement in a month. What is its profit or loss?
In a class test containing 15 questions 4 marks are given for every correct answer and (–2) marks are given for every incorrect answer. Mohan attempts all questions but only 9 of his answers are correct. What is his total score?
A shopkeeper earns a profit of Rs 1 by selling one copy and incure a loss of 40 paise per pen while selling pens of his old stock. In a particular month he incurs a loss of Rs 5. In this period he sold 45 copy. How many pens did he sell in this period?
The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C per hour until midnight, at what time would the temperature be 8°C below zero?
24 videos51 docs112 tests

24 videos51 docs112 tests
