Question
Which one is not a clay
mineral?Solution
Quartz is not a clay mineral; it is a mineral composed of silica. Clay minerals include mica, kaolinite, and vermiculite.
The average age of (x + 3) students is 20 years. When their teacher aged 35 years joins them, the average increases by 1 year. Find x% of 400.
Present ages of P and Q are in the ratio 3:5 respectively. If Q’s age, 16 years hence from now will be 6 times of P’s age, 6 years ago from now, the...
The current age ratio of 'Ganesh', 'Hitesh', and 'Indira' is 5:7:6. In 8 years, the ratio of the ages of 'Ganesh' and 'Hitesh' wi...
Five years ago from now, ratio of ages of Sohan and Mohan was 3:5, respectively. If 5 years hence from now, ratio of their ages will be 7:10, then find ...
Pawan is 8 years younger than 'Qureshi' and 8 years older than 'Raju'. The current age ratio of 'Qureshi' to 'Raju' is 3:2. What ...
The ratio of the present ages of father and his son is 5:2. The product of their ages 4 years ago was 31 times of his son’s age that year. What wa...
- Five years ago, the ratio of age of ‘A’ to ‘B’ was 4:5. Seven years from now, their age ratio will be 6:7. Find the present age of ‘Z’, who is ...
Sum of the present ages of A, B, C and D is 40 years. After 6 years ratio of their ages is 6:5:3:2. What is C’s present age?
The total age of A, B and C five years hence will be 84 years. Find the age of C three years hence, if the present age of A and B is 34 years and 23 yea...
Amit age after 15 years will be 2 times his age 2 years back. What is the present age of Amit?
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