Question
Two pipes A and B can fill a tank in 12 min., and 16
min, respectively. If both the pipes are opened simultaneously, after how much time A should be closed so that the tank is full in 12 minutes?Solution
Let A be closed after x minutes. Then, Part filled by (A + B) in x min. + part filled by B in (12 – x) min. = 1 x (1/12 + 1/16 ) + (12 – x ) × 1/16 = 1 ⟹ (7 x)/48 + (12 - x)/16 = 1 ⟹ (7 x)/48 + 3/4 - x/16 = 1 ⟹ (4 x)/48 = 1/4 ∴ x = 3 ∴ Hence, A must be closed after 3 minutes.
Which among the following crop has CRI as critical irrigation stage?
The name of sugar has originated from the Sanskrit word ____
The detection of ghee with vanaspati can be done by
Vegetables play a very important role in Human nutrition. Vegetables are mostly of which nature?
The lower leaves become rusty brown near the base and ultimately dry up in rice due to the deficiency ofÂ
The fungus coletotrichum falcatum causes which disease in sugarcane?
The pH range for the biofertilizers production as specified by Bureau of Indian Standard (BIS) should be
What is the symptom of calcium deficiency in crops?
What is the aggerate loan limit from banking system for the category of food and agro-processing under Ancillary Agriculture under priority sector lendi...
Sex-influenced traits are autosomal qualities that are impacted by sex. An example of sex influenced traits is