Question
Which of the following insect orders contains species
that are exclusively parasitic in behavior?Solution
Phthiraptera (lice) are obligate ectoparasites of birds and mammals, feeding on blood or skin debris.
Number of faculties in Physics and Biology in an institute is in the ratio of 3:5 respectively. If 75 more faculties join Physics, while 40 more faculti...
If 30% of a certain number is equal to 4/5th of another number, what is the ratio between the numbers?
Monthly savings of ‘Q’ is 20% more than that of ‘P’ and is 48% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 4260 a...
Ratio of males to females in village ‘A’ and village ‘B’ is 3:4 and 5:6, respectively and number of females in village ‘B’ is 25% more than ...
The ratio of two numbers ‘X’ and ‘Y’ is 7:9, respectively. If 4 is added to each of ‘X’ and ‘Y’, then the ratio of ‘X’ and ‘Y’ ...
The ratio of two numbers ‘A’ and ‘B’ is 3:5, respectively. If 10 is added to each of ‘A’ and ‘B’, then the ratio of ‘A’ and ‘B’...
An integer 'p' is added to each of 12, 20, 36 and 48 so that the resulting numbers will be in proportion in given order only. Find the value of '(p + 4)'.
Ratio of males to females in village ‘A’ and village ‘B’ is 4:5 and 19:20, respectively and number of females in village ‘B’ is 25% more tha...
A sum of money is divided among P, Q, R and S in the ratio of 5:6:10:11 respectively. If the share of R's is Rs. 2440 more than the share of Q, then wha...
Three numbers A, B and C are in the ratio of 10 : 12 : 17. If sum of these numbers is 429, ratio between the difference of B and A and the difference of...
Relevant for Exams:
